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"We follow in the footsteps of Guilliman. As it is written in the Codex, so shall it be."

Marneus Calgar, Chapter Master of the Ultramarines
Codex-Astartes

A diagram displaying the organisation and structure of a Codex Astartes-compliant Space Marine Chapter before the revision of the Codex and the introduction of the Primaris Space Marines in the Era Indomitus.

The Codex Astartes is a great and sacred tome of military organisation, strategy and tactics written by Roboute Guilliman, the primarch of the Ultramarines Space Marine Legion. It outlines Guilliman's ideal for the moral behaviour, order of battle and tactical doctrine of a Space Marine Chapter. Its primary purpose was to restructure the Imperium of Man's most potent military forces to prevent another civil war like the Horus Heresy.

While not all Space Marine Chapters in the Imperium adhere to the Codex's dictates with the same rigidity as the Ultramarines, most obey the spirit of the Codex if not the actual letter. A Space Marine Chapter that generally follows the guidelines of the Codex Astartes is referred to as a "Codex-compliant Chapter."

With the threat of the Traitor Legions held at bay in the wake of the Great Scouring in the early 31st Millennium, Roboute Guilliman turned to ensuring that such a catastrophic intra-species war could never happen again, distilling his formidable wisdom into the mighty tome known as the Codex Astartes.

This text became a major part of his legacy and the cornerstone upon which the future of the Adeptus Astartes would be based. No complete copies of his original text is known to exist although the majority of his tome has survived and is available to all Space Marines, if not committed to memory.

Though for all its multitudinous topics, the most lasting and contentious decree of the Codex Astartes was that the existing Space Marine Legions be broken up and reorganised into smaller, one-thousand-warrior organisations known as Chapters. Though many of his brother primarchs initially railed against Guilliman's decree as the lord commander of the Imperium and Imperial Regent, almost all eventually accepted the necessity of reorganisation for the security of the Imperium.

Upon the Codex's implementation, in an event that would become known as the Second Founding, each of the original First Founding Space Marine Legions became a conclave of Chapters, one of which would bear the name of its forebear Legion as well as its heraldry, homeworld, and would retain some level of political primacy amongst its peers. The rest would take new names, heraldry, and homeworlds or fortress-monasteries, and stretch themselves across the Imperium.

The Codex Astartes stated that each Chapter would be only one thousand battle-brothers strong and look to its own recruitment, training and wargear. Never again would one individual be able to command the awesome, terrifying power of an entire Space Marine Legion.

Over the millennia, there have been many subsequent Foundings of Space Marine Chapters. Those Chapters that adhere rigidly to Guilliman's teachings are sometimes referred to as "Codex Chapters." These Space Marines pride themselves on following the tenets within the hallowed pages of the Codex Astartes and applying its principles of warcraft and devotion to the Emperor.

History

"They shall be pure of heart and strong of body, untainted by doubt and unsullied by self-aggrandisement. They will be bright stars on the firmament of battle, Angels of Death whose shining wings bring swift annihilation to the enemies of Man. So it shall be for a thousand times for a thousand years, unto the very end of eternity and the extinction of mortal flesh."

—Opening passage of the Codex Astartes

In the early 31st Millennium, in the wake of the calamity that was the Horus Heresy, the foundations of the Imperium of Man were reformed to make such a tragedy less likely in the future. The first High Lords of Terra, under the direction of the Lord Commander of the Imperium and Imperial Regent Roboute Guilliman, the primarch of the Ultramarines Legion, established the structure by which the Adeptus Terra operated, and described the feudal responsibilities and duties of the planetary lords.

One of the most important accomplishments was the reorganisation of the Imperium's fighting forces. This was undertaken almost single-handedly by Guilliman, who with characteristic speed and efficiency codified the structures of the newly-created Astra Militarum, the Navis Imperialis, and the Adeptus Astartes.

Of all of Guilliman's works from this time, the most influential is the Codex Astartes, the great prescriptive tome that lays down the basic organisational and tactical rules for the Space Marine Chapters.

The initial inspiration for Guilliman's Codex Astartes came from Sergeant Aeonid Thiel, an Ultramarines veteran of the Underworld War of the Battle of Calth during the Heresy, who was present on Calth during that conflict against the treacherous Word Bearers.

In the aftermath of the initial battle on the surface of Calth, when the fight devolved into a series of grinding assaults between small Astartes units surviving in the subterranean holds of that world after the poisoning of its sun, Thiel founded small, independent task-force squads called the Red Marked, which were made up of surviving Ultramarines. The Red Marked were responsible for rooting out and eliminating the forces of the Traitor Marine warbands that were hiding on Calth and the other ruined worlds of the Realm of Ultramar.

During the meeting between the Ultramarines primarch and Thiel on one of Macragge's space stations in which Thiel reported his experiences, after listening to Thiel's report Guilliman tore apart the documents upon which had been writing his old tactical doctrines and made his message clear: the Ultramarines would no longer be a "horde under a warlord" that followed their primarch but "hundreds of thousands of individual Legionaries each in support of the other."

Thus was the vision for a series of smaller Space Marine units that could operate as rapid-strike planetary assault forces conceived, an idea that would eventually be fully realised later in the doctrines of the Codex Astartes.

Following the end of the Horus Heresy and the Great Scouring and the retreat of most of the Traitor Legions into the Eye of Terror, the Codex decreed that the nine remaining Loyalist Space Marine Legions would be divided into 1,000-warrior Chapters, the Chapter Masters of which would be directly beholden to the Emperor Himself and no other, not even the primarchs of their original founding Legions (save in the case of the single Chapter that would remain under each primarch's control and retain its Legion's original name). No one person in the Imperium could ever again control the transhuman might of an entire Legion of 100,000 or more Space Marines.

The Horus Heresy had revealed previously unknown genetic weaknesses in the gene-seed of the primarchs and the Space Marines among the original 20 First Founding Space Marine Legions, weaknesses that left the Legions in question greatly exposed to corruption by the Ruinous Powers of Chaos.

This risk was exacerbated by the rapid nature of Space Marine recruitment during the centuries between the start of the Great Crusade in ca. 798.M30 and the outbreak of the Horus Heresy itself in the early 31st Millennium. With the Imperium of Man expanding so quickly across the galaxy during the Great Crusade, the need for fresh recruits in the Space Marine Legions was great. So much so that some Legions had not been as particular in their gene-seed screening practices and recruit selection processes as they should have been.

The first objective of Roboute Guilliman in writing the Codex Astartes was to both recognise and purge these weaknesses. As a result, the Codex Astartes decreed that Space Marines would forever more be created and trained slowly. The genetic banks used to create Astartes organ implants would be carefully monitored and scrutinised for any defects. Cultivated organs would be subject to the most stringent tests of purity. Young initiates would undergo trials of suitability before they were accepted, and only those of the very sternest character would be chosen.

As a final safeguard, Guilliman tasked the Adeptus Terra on Terra with setting up and maintaining genetic banks to produce and store tithes of Space Marine gene-seed. These banks were to provide all new gene-seed for subsequent Foundings of Space Marine Chapters.

To prevent cross-contamination, the genetic stock of each First Founding Legion was isolated whilst that of the Traitor Legions was placed under a time-locked stasis seal, though at the time many believed they had been destroyed.

By taking direct control of these genetic tithes, the Adeptus Terra could ultimately control the Space Marines, thus ensuring that normal Humans and not the transhuman Astartes remained the true rulers of the Imperium. They alone had and have the power to destroy or create Space Marine armies at will.

The Codex outlined a new, more measured process for Space Marine selection and recruitment and insisted that each newly-created Successor Chapter would tithe 5% of its genetic material to the Adeptus Terra and the Adeptus Mechanicus for testing and monitoring. It also decreed that only the Emperor Himself, through the auspices of the High Lords of Terra, would ever again be able to order the creation of a new Space Marine Chapter.

All gene-seed would be subjected to the greatest genetic scrutiny before being used in the creation of new Space Marine implants. To maintain firm genetic control over the Space Marine gene-seed lines and prevent the emergence of potentially dangerous mutations or hybrids, the Codex rebuked the practice of sharing gene-seed between different Chapters. From then on, each Chapter would have to rely solely on the gene-seed produced in the bodies of its own Space Marines.

The Codex also further defined the accepted tactical doctrine, Chapter organisation, order of battle, and recruitment practices for a Space Marine Chapter. It explained the different battlefield roles assigned to each squad of Space Marines in a Chapter, originally defining them as Tactical, Assault or Devastator Squads and assigning different equipment and purpose to each (see the excerpts below). These roles were later revised after Guilliman's resurrection in the Era Indomitus and broadened, to include both Firstborn and Primaris Marine units categorised as battleline, close support, fire support, Veteran and command.

There were many other topics covered in the original Codex and all of them displayed Guilliman's formidable intelligence and hard-won wisdom. Most of the old Legions were divided into fewer than five Chapters following the horrific losses they had suffered during the Horus Heresy, but the Ultramarines, being by far the largest of the Legions, were divided many times.

The exact number of new Chapters created from the Ultramarines is uncertain: the number listed in the oldest known copy of the Codex Astartes (the so-called Apocrypha of Skaros) gives the total as 24, but does not name them all.

These Chapters would consist of ten companies of 100 Space Marines each. The breaking of the remaining nine Loyalist Legions into multiple Space Marine Chapters is known to Imperial historitors as the Second Founding, which occurred in ca. 021.M31, seven standard years after the death of Horus.

As a result of the Second Founding, the Ultramarines' gene-seed became the favoured genetic stock of most subsequent Foundings. The new Chapters created from the Ultramarines are often referred to as the "Primogenitors," or "first-born." All of the Primogenitor Chapters venerate Roboute Guilliman as their founding father and patron.

Only one of the original Space Marine Legions, the Space Wolves, has never been broken down into the ten companies decreed in the Codex Astartes. The Space Wolves continue to organise their forces into thirteen "Great Companies," different in organisation to those specified by the Codex.

Note that the oldest copy of the Codex, the Apocrypha of Skaros, refutes the commonly-held belief that the Space Wolves have never been broken down into separate Chapters, stating that two Second Founding Chapters were created from the Space Wolves (Index Astartes I, pg. 13). However, the Space Marine Codex (5th Edition) lists only one Second Founding successor to the Space Wolves: the Wolf Brothers, who were disbanded at an unknown time because of extreme gene-seed corruption and mutation. Only in the Ultima Founding would new Chapters of Primaris Space Marines finally be raised using the gene-seed of Leman Russ.

The Codex Astartes further defines the tactical roles, equipment specifications, and uniform identification markings of the Space Marines. With the passage of many Terran centuries, some Chapters have strayed from the strict letter of the Codex, introducing unique variations on its teachings but remaining broadly faithful to Guilliman's basic principles.

Furthermore, the Codex has been reanalyzed, reinterpreted and modified countless times over the centuries, including most recently by Guilliman himself. Regardless, the Codex Astartes remains, as it has always been, the Space Marines' authoritative guide to waging war. As such, it is revered by every battle-brother as a holy text; the wisdom of the ancients serving as both scripture and the unbending rod by which they are measured.

These guidelines have evolved in practice from Chapter to Chapter over the millennia, and the treatise and wisdom of hundreds of military thinkers have been absorbed in their own battle philosophies. The Codex Astartes is revered as a sacred text, and many Chapters regard its recommendations as sanctified by the Emperor Himself.

Firstborn Marine Chapter Organisation

UM Astartes Ultra

The order of battle of the Ultramarines, the archetypal Codex Astartes-compliant Space Marine Chapter, displaying the full composition of all ten companies.

The original dictates of the Codex Astartes before its revision in the Era Indomitus stated that a Space Marine Chapter should be split into 10 companies of 100 Space Marines each, plus a Space Marine captain, Apothecary, Standard Bearer and Chaplain for each company.

UM 2nd Co

Order of Battle of the Ultramarines 2nd Company, "Guardians of the Temple"; an excellent example of a post-Heresy Codex Astartes-compliant Space Marine company.

Existing outside the company level organisation, each Chapter has an Armoury consisting of the Chapter's Techmarines, main battle tanks, and other armoured vehicles, a Librarium consisting of the Chapter's Librarians, a Chapter Fleet and the Chapter Master, plus various headquarters staff and the Chapter's servitors and Human Chapter serfs.

Veteran Company

The 1st Company of a Chapter consists of Veteran Squads and/or Terminator Squads. Support for the 1st Company consists of Land Raiders and Venerable Dreadnoughts.

Only the 1st Company may use the Chapter's hallowed suits of Terminator (Tactical Dreadnought) Armour, if it is lucky enough to possess any.

Battle Companies

The 2nd, 3rd, 4th and 5th Companies of a Codex-compliant Chapter are known as "Battle Companies" and they all have the same tactical organisation.

Each Battle Company is split into 6 Tactical Squads, 2 Assault Squads and 2 Devastator Squads comprised of 10 Space Marines each. Some companies also make use of Command Squads comprised solely of Veterans to protect their officers or other specialists like Apothecaries and Chaplains.

The Assault Squads can instead be deployed as Bike Squadrons or on Land Speeders.

Battle Companies often use Rhino and Razorback dedicated transports, and commonly deploy Dreadnoughts for heavy fire support.

Reserve Companies

The 6th, 7th, 8th and 9th Companies of a Chapter are its "Reserve Companies."

The 6th and 7th are comprised entirely of Tactical Squads, the 8th of Assault Squads and the 9th of Devastator Squads.

Like the Battle Companies, the Reserve Companies also make extensive use of Rhino and Razorback transports, though Dreadnoughts are usually only found in the 9th Company.

The 6th Company can be entirely deployed on Space Marine Assault Bikes and the 7th on Land Speeders. The 8th Company can use either Space Marine Bikes or Land Speeders.

These forces are held in reserve to be deployed at the discretion of force commanders as tactical situations evolve, often to bolster weak points or aid in breaking through enemy lines at specific locations.

Scout Company

The 10th Company consists entirely of Scout Squads and is often not 100 Astartes-strong as stringent recruitment standards do not provide a steady flow of neophytes to many Chapters.

As such, the 10th Company is the most lightly armed and is most often used as a reconnaissance or guerilla force. Scout Marines are sometimes mounted on Space Marine Bikes, but do not use Rhino or Razorback transports.

Era Indomitus Chapter Organisation

IndomitusEraChapterOrganisation

Space Marine Chapter Organisation in the Era Indomitus after the opening of the Great Rift.

The above scheme of Space Marine Chapter organisation has been revised in the years since the birth of the Great Rift at the dawn of the Era Indomitus, the alterations made to the Codex Astartes by the resurrected Primarch Roboute Guilliman and the introduction of the Primaris Space Marines into the Adeptus Astartes.

As before, the organisation of a Space Marine Chapter in the wake of the Ultima Founding of the Primaris Marines comprises 1,000 battle-brothers.

In comparison to the teeming multitudes of the Emperor's original Space Marine Legions this is few indeed, yet history has proven time and time again that such an elite gathering of martial strength can conquer star systems and even alter the fate of the galaxy itself.

After the resurrection of Roboute Guilliman in ca. 999.M41 and his restoration as the ruling lord commander of the Imperium and Imperial Regent, the Codex Astartes was revised for the new era of the Dark Imperium that began with the birth of the Great Rift and the demands of the Indomitus Crusade.

CodexAstartesHeraldry

Codex Astartes-approved heraldry for an Adeptus Astartes Chapter after introduction of the Primaris Marines in the Era Indomitus.

Under the revised organisational scheme, each of the ten companies of a Chapter still boasts one hundred warriors, led by a captain -- a veteran of countless wars -- and now often two lieutenants as sub-company leaders. A company is still organised into ten squads of ten Space Marines, each led by a sergeant.

The strategic deployment, disposition and leadership of these companies is regulated by the Chapter Command, while their armoured support requirements are fulfilled by the Armoury.

However, the guidelines in Guilliman's updated Codex provide for up to twenty squads of five battle-brothers. Furthermore, recent precepts allow for each Battle Company to be reinforced with auxiliary warriors. These additional squads are reassigned from the Reserve Companies.

1st Company

Of the ten companies, the 1st still consists of the Chapter's most experienced Veterans, and is therefore the most powerful. The Veterans of the 1st Company are still trained to fight in Terminator Armour. It is extremely rare for the Veteran Company to be deployed en masse -- its units normally take to the field alongside the Chapter's Battle Companies.

Whether they be Primaris Marine Intercessors, Vanguard Marine jump troops or Terminator-armoured strike squads, they are often denoted as the Chapter's pre-eminent warriors by their white helms.

Battle Companies

The revised Codex Astartes decrees that the 2nd, 3rd, 4th and 5th Companies are still designated as Battle Companies, each nominally broken into two demi-companies of roughly equal size and composition. These generally carry the weight of a Chapter's combat duties. Battle Companies consist of at least six battleline squads, two close support squads and two fire support squads.

Battle Companies provide their commanding officers with a flexible force that can respond to rapidly shifting tactical objectives at a moment's notice.

Squads within Battle Companies may be broken down and deployed across a variety of roles should it be required; for example, were six battle-brothers to take to the field as Aggressors, the remaining four warriors of their squad might find roles piloting Invictor warsuits, driving the strike force's Rhino APCs and the like. Or Assault Squads, a type of close support squad, may be deployed as Bike Squads or Land Speeder crews and, just as with their fire support brethren known as Devastators, may take to battle as Centurion warsuit pilots.

Many Space Marine strike forces are constructed around squads drawn from a single Battle Company, heavily reinforced by elements of the Veteran, Scout and Reserve Companies.

Reserve Companies

The Reserve Companies are entirely composed of squads of the same designation. They normally act in support of the Battle Companies and provide a source of replacements for any casualties suffered by the frontline formations.

Typically, the 6th and 7th Companies both comprise ten battleline squads, while the 8th Company consists entirely of close support squads and the 9th entirely fire support squads.

Their main function is to reinforce the Battle Companies, providing a source of replacements for any casualties suffered on the front line and thus ensuring the Adeptus Astartes retain their effectiveness in protracted or bloody campaigns.

Furthermore, the Codex now allows for each Battle Company to be bolstered with additional squads reassigned from the Reserve Companies; the presence of these warriors can take a company's numbers temporarily above the traditional limit of 100 Astartes, lending them the additional strength to overcome especially challenging foes.

The 6th Company also trains in the use of Assault Bikes and may be deployed entirely as Bike Squads or Outrider Squads.

Similarly, squads of the 7th Company are trained to fight with Land Speeders, Storm Speeders and Stormtalons, often acting as a light vehicle reserve formation.

The 8th Company is the Close Support Company and is most often used in an invasion role, or wherever a strong, hand-to-hand fighting force is needed.

The 9th Company is the Fire Support Company and is the most heavily equipped company in the Chapter, and its heavy cannon-toting Astartes provide unparalleled fire support to their more lightly-equipped comrades.

It is also not uncommon for the Reserve Companies to form hard-hitting specialised forces in their own right. They may be deployed to seize or defend important objectives in larger conflicts, the concentrated firepower of so many fire support battle-brothers or the line-breaking fury of massed close support warriors proving the decisive factor in many such engagements.

The specialised nature of each of the Reserve Companies sees them deployed in quite specific circumstances. The battleline warriors of the 6th and 7th Companies will often act as crews for large, independent formations of the various armoured vehicles deployed by the Chapter, allowing commanders to field entire companies of anti-grav skimmers, battle tanks or other swift assault vehicles.

The highly mobile nature of the 8th Company's close support squads -- often equipped with Jump Packs or embarked aboard transport vehicles -- sees them used in a rapid assault role, as well as wherever a strong hand-to-hand fighting force is needed.

The 9th Company, being the most heavily equipped in the Chapter, is used to bolster defensive lines and strongholds, as well as provide long-range support.

In most Chapters, Space Marines progress through the Reserve Companies -- from the 9th through to the 6th. During his time in the Reserve Companies, a battle-brother will prove his mettle while learning new methods of warfare.

Scout Company

The Chapter's 10th Company is still its Scout Company. The majority of its members are neophyte Scout Marines -- those whose combat training, physical transformation and cultural indoctrination into the Chapter is still incomplete -- but the company now also contains a standing force of ten Vanguard Space Marine squads.

These warriors can be called upon to conduct a variety of stealth operations behind enemy lines.

The revised Codex Astartes dictates no formal size for a Scout Company as the rate of recruitment is not fixed, meaning that some Chapters will be able to field comparatively large 10th Company formations while others must husband their limited resources carefully.

Chapter Armoury

All companies, except the Scout Company, maintain a small fleet of Rhino, Razorback and Repulsor armoured transports. The Veteran 1st Company also has a permanent complement of Land Raiders of different patterns and Stormraven gunships for carrying Terminators into the heart of battle.

A Chapter's other armoured vehicles form a pool, maintained by the Armoury, that company captains can draw upon. Many companies also include a number of Dreadnoughts of different patterns, including the Primaris Marines' Redemptor Dreadnought.

Every company has its own Dreadnoughts; after being interred in the metal sarcophagus, it is customary for a fallen Space Marine to fall under the care and maintenance of the Chapter Armoury, but to remain a part of the company in which he served. Not only are these venerable and mighty warriors valuable battlefield assets for the devastation they can wreak upon the foe, but they are also the living embodiment of their company's history and traditions. Each Dreadnought has its battle honours inscribed into the very metal of its encasement by the Chapter's artificers to celebrate the many brave actions in which it took part.

Whilst each company has a number of its own transport vehicles, the majority of vehicles in a Chapter are maintained by its Armoury. When the need arises these armoured fighting vehicles are deployed as massed spearheads -- wholly independent from the companies and commanded by a senior officer -- or requisitioned individually by a captain to support their company.

In the latter case, the vehicles are given badges appropriate to the company they will serve and are assigned a simple numerical designator. This number is repeated on the crews' badges, if the vehicle is not manned by a Techmarine novitiate from the Armoury.

Upon its creation, a Space Marine battle tank is given a name that reflects its role as a protector of the Chapter's brethren. From that point onwards, the vehicle is as much a part of the Chapter as the Space Marines themselves, and over the years its many deeds will be celebrated as greatly as those of the Chapter's flesh and blood heroes.

Chapter Headquarters/Command

A Chapter also includes a number of officers and specialists who exist outside of the formal organisation of the companies. These individuals are known as the headquarters or command staff, and they will often stride out to lead a strike force in battle, or provide essential battlefield support, spiritual leadership, psychic capability and destructive combat prowess.

Included amongst their rarefied ranks are the psychically-empowered Librarians of the Librarius, the bellicose Chaplains of the Reclusiam, Apothecaries from the Apothecarion, standard-bearing Ancients and the mechanically adept Techmarines and their servitors.

Although the Codex Astartes describes a number of ranks and responsibilities held by the headquarters staff, only those officers with an active martial role actually accompany the Chapter to war. There are relatively few senior officers with noncombatant roles -- such as recruiting and training new members or administrating the Chapter -- as most of these types of duties are performed by Human Chapter serfs.

In addition to their rank, captains of the Chapter are still often assigned Space Marine Master titles which include other functional responsibilities. These include such positions as the Lord of the Household, the Chapter Master's Secretarius, the Master of the Fleet, the Chief Victualler, the Master of the Arsenal, the Master of Recruits and the Master of the Watch.

Over all of these mighty warriors still presides the Chapter Master, elevated from the greatest of the Chapter's captains. He alone is responsible for the deeds of the Chapter, and answers directly to the Administratum.

Chapter Masters may select an Honour Guard that are in addition to the company roll, although not all Chapter Masters choose to do so.

Vanguard Marines

Vanguard Space Marines are reconnaissance and infiltration experts, equipped to operate alone in enemy territory for extended periods of time and intensively trained in shadow warfare tactics and sabotage techniques. Vanguard strike forces are tasked with achieving full-spectrum superiority over the foe.

Every facet of the opposition's war machine must be dismantled, from supply routes and infrastructure to communications and logistics. Morale must be utterly sapped through non-stop harassment by terror troops and assassination of key individuals. The ultimate goal of this relentless campaign is to leave the foe crippled and helpless before the advance of the main Space Marine battleline.

Every newly recruited and created Primaris Space Marine spends time in the 10th Company learning the full range of Vanguard combat techniques, from the mobile fire support duties of the Suppressors and the expert sniper-combat of the Eliminators, to the terror raids of the Reivers and the point-blank gunfighting of the Incursors.

The Primaris battle-brothers keep their Vanguard skills honed even after they move on to other companies, meaning that at a moment's notice they can don any of the various types of Mark X Phobos Power Armour and go to battle as Vanguard Space Marines. Even Veterans of the 1st Company can swiftly reprise such duties, combining the benefits of their vast wealth of combat experience with the specialised and wholly lethal infiltration-and-sabotage tools of the Vanguard.

When a full-sized Vanguard force deploys into battle they often do so with armoured support from Invictor Tactical Warsuits and Impulsor transports, not to mention the leadership of captains, Librarians and the like also armed and armoured for stealth warfare.

An elite, fast-moving, silent-striking force of this sort can secure victories through ambush, sabotage and assassination that a far larger army could never achieve through brute force alone.

Terminator Strike Forces

Individual squads of Terminators are most often deployed as ultra-elite support for the Battle Companies. However, there are times when a Chapter will mass the majority -- and in exceptionally rare cases, even the entirety -- of its Terminator-armoured brethren and send them into battle as an utterly devastating strike force.

This occurs most commonly when an infantry assault is required against a confined and inimical location. Clearing xenos infestations out of vast space hulks, striking at the heart of heretical fortresses and staging boarding actions against super-heavy enemy war engines are all examples of duties that Terminator forces excel at.

Equally, some Chapters may furnish their Terminator Squads with transport in the form of gunships and battle tanks, and field them as swift and utterly unstoppable assault forces. The risks involved in such an action are high, for every suit of Terminator battle-plate is an irreplaceable relic, and those who wear it to battle are scarcely less valuable -- should such a force suffer heavy losses or, worse, be annihilated, their Chapter may never truly recover.

Yet it is a risk often worth taking; a hundred Terminator-armoured Space Marines supported by Land Raiders and Stormravens possess more than enough martial might to lay low the most monstrous of foes, or conquer an entire world in the Emperor's name.

Chapter Fleet

The Codex Astartes makes provision for every Space Marine Chapter to maintain its own combat-capable fleet. Indeed, some Chapters are entirely fleet-based, roaming the galaxy aboard armadas of voidcraft that between them serve the same functions as other Chapters' fortress-monasteries.

The majority of each fleet comprises frigates and strike cruisers, well-armoured and heavily armed warships that excel in line-breaking, blockade-running and planetary drop-assault operations.

Many Chapters, especially the older and more established amongst them, also retain a handful of battle barges; these potent voidcraft are every bit as formidable as Imperial Navy battleships, and often serve as the storied flagships of each Chapter's fleet.

It is in the launch bays of such warships that the Chapter's Drop Pods and Boarding Torpedoes wait to bear the warriors of the Chapter into war. Their launch decks, meanwhile, house squadron after squadron of fightercraft and gunships ready to swarm out and defend their parent craft or support ground forces in battle.

Siege Tactics

When manoeuvres break down and rapid strike offensives prove impossible, the Codex Astartes offers two solutions: bypass the heavily defended area, or besiege it. The Astra Militarum might enter into attritional sieges that last solar decades or longer, but such is not the way of the Adeptus Astartes.

Space Marine siege tactics are many and varied, with most involving a complex series of choreographed attacks. Defences are probed and then distracted as assaults breach the enemy line or take the heavily defended objective.

The Space Marines have a number of vehicles designed for besieging foes, such as Vindicators and Ironclad Dreadnoughts, that are ideal at bringing maximum firepower to bear against any fortress. There is no force in the Imperium that can exploit an enemy weakness more rapidly than the Adeptus Astartes.

Stealth Tactics

The small but elite forces of the Space Marines put a high value on the element of surprise. Sometimes this can be achieved through speed -- rapid strikes that deploy before a foe can counter.

While such sudden assaults are a hallmark of the Adeptus Astartes, they are also able to utilize stealth attacks in a manner few other forces can emulate. By using auto-senses and sophisticated scanning equipment, some Space Marines learn to avoid visual detection, dodging patrols or enemy pickets when needed.

Sniper teams secret themselves in commanding overviews. Assault Squads and Grav-Chute bearing Reivers are silently air-dropped into position, while Scout Marines in Cameleoline Cloaks steal into position.

When the attack comes -- coordinated to the millisecond -- it is a perfect example of the combined arms approach espoused so often in the Codex Astartes. Brief but bloody assaults follow, throwing the foe into disarray while other elements of the attack join the fray, be they massed Rhino transports disgorging troops or Drop Pods hurtling down from the skies.

While nearly all Chapters regularly employ covert operations, some, like the Raven Guard, are particularly adept at such missions. Their ability to stalk their prey from the shadows is the stuff of legend.

Anvil Strike Force

Sometimes, a mission or adversary will demand that a Chapter must mobilise the entirety of its Armoury. In these instances, fully armoured battle groups are gathered, and truly does the ground shake beneath their treads.

Led by captains mounted in Land Raiders or other tanks, they trundle forward, enemy fire pattering off their thick armour before they answer with a murderous barrage of their own.

There are many types of armoured strike force, each tailored to suit the needs of its Chapter, the foe or the terrain. An Anvil Strike Force is perhaps the most famous of these, the strictures for its formation and use dating back to the creation of the Codex Astartes.

The annals of the Space Marines are filled with glorious accounts of the Anvil Strike Force's might.

In the wilderness of the Halo Stars, Captain Dauuk of the Iron Hands led just such a mechanised strike force into the Warren Worlds. There, among the caustic yield-nests of the Heretek cults, his Predators stalked the sentient mecha-fauna, blasting apart the Chaos worshippers and their daemonic allies.

No Space Marine, not even an Iron Hands battle-brother, could have lived long in that toxic place, though the tanks of Dauuk's strike force endured, and scoured the planet clear of threats in less than a solar week.

The Aurora Chapter is particularly well known for their lightning-fast armoured assaults, leading the way with Land Raider spearheads supported by Land Speeder suppression forces.

Brother-Sergeant Antaro Chronus has led many armoured attacks for the Ultramarines, and he has won much acclaim for incorporating aerial support and using transported troops to hold the territory won by his vehicular assaults.

The Repulsor grav-tank unleashed by the Primaris Space Marines in the Era Indomitus has added further power to the armoured might of the Adeptus Astartes.

Drop Assaults

Unheralded, the peaceful skies are torn asunder with a violence so sudden that the Human eye can barely follow. Across untold planets since the days of the Great Crusade, the arrival of the Angels of Death has signalled defeat for the enemies of the Imperium.

Surgical drop assaults are swift deployments of ground-based forces by vertical take-off and landing aircraft such as the Thunderhawk or Stormraven, or by Drop Pods launched straight from orbit.

While there are many tactical variants of the surgical drop assault, and a host of different force compositions, all rely on speed and surprise. They are used to seize and hold vital terrain, to misdirect enemy forces, or to seek and destroy key enemy commanders, defences or war engines.

Many an Ork WAAAGH! has been halted in its tracks by a Space Marine drop assault. Billions of Greenskins have been left to squabble amongst themselves after their Warboss and his entire bodyguard were annihilated by a sudden assault that came from the skies.

The fabled Defence Laser batteries of Ixx were so powerful they could destroy any fleet that entered orbit, yet they fell prey to a Space Marine assault that opened the entire planet up for invasion.

When rebel armies surrounded the planetary governor's palace on Dhrax, the Astra Militarum could not react quickly enough, but an Ultramarines holding force arrived from the skies to keep the governor safe.

Many Space Marine Chapters have a preferred method of planetstrike assault -- such as the Drop Pod and Land Speeder Skyhammer Orbital Strike Force favoured by the Raven Guard -- but much depends upon the situation and the forces at hand.

No matter its composition, the timing and coordination of a vertical assault are always vital. With correct landing coordinates, Drop Pods can be the ultimate terror weapons, hurtling out of the sky to land at the very heart of the foe.

Before the enemy can react, the occupants deploy -- either assaulting or blasting their opponents at close range. Landing in rapid succession, the Space Marines can quickly turn a staggered foe into a routing one. Mistime or misplace the drop assault, however, and the Drop Pods will be picked off one by one, the enemy able to concentrate their fire and seize back the initiative.

When arriving by Thunderhawk or Stormraven, it is vital for the Space Marines to provide aerial support; Stormhawks keep the skies clear while Stormtalons make strafing runs to ensure the landing vehicles can deploy those inside.

The most savvy of Astartes commanders will use a combined strategy: close support forces air-dropped in concert with a Drop Pod assault, while Stormravens deploy more squads, and even Dreadnoughts, to keep the foe off balance. By striking hard and fast, a Space Marine drop assault can sweep the battlefield of targets and be gone even before the smoke clears.

Heraldry

CodexAstartesHeraldry

Revised Codex Astartes-approved heraldry for an Adeptus Astartes Chapter in the Era Indomitus.

The Codex Astartes contains detailed sections pertaining to the heraldry of Space Marine Chapters. These dictate that a Space Marine should display his Chapter's badge upon his armour's left shoulder guard, whilst his right shoulder guard should show his squad markings.

The Codex also states that a Space Marine should incorporate his company's heraldic colour into his armour, displaying it on the trim of his shoulder guards.

The Codex suggests a number of variations on this basic system and even advises that each Chapter periodically revise its markings to confound the foe. This has led to myriad differences between the many Codex Chapters and to some having varied their appearance over the millennia.

Each Chapter has its own unique power armour colour scheme and Chapter badge; however, Codex-compliant Chapters all follow a common heraldry system, though there are many slight variations from the system described below.

Company Colours

Each company has a unique colour that its members wear, commonly on their power armour's shoulder plate rims, but some Chapters use chest eagles, bolter cases, knee plates, helmets or other parts of a Space Marine's power armour to designate company number.

  • 1st Company - White or Silver - Members of the 1st Company should also paint their helmet the company colour.
  • 2nd Company - Yellow or Gold
  • 3rd Company - Red
  • 4th Company - Green
  • 5th Company - Black
  • 6th Company - Orange
  • 7th Company - Purple
  • 8th Company - Grey
  • 9th Company - Blue
  • 10th Company - Nominally white, however the company colour is not displayed on the members' armour because they are Scouts.

Squad Markings

UltramarinesHeraldry

Examples of the Ultramarines' Codex-approved company colours and squad markings

The left shoulder plate of a Space Marine in power armour always shows the Space Marine's Chapter badge. Squad markings are shown upon a battle-brother's right shoulder guard, except in the case of some older marks of Space Marine power armour that instead display them upon knee plates or within the Chapter badge itself.

UltramarinesVeteranVetSergeant

An Ultramarines Veteran Marine and Veteran sergeant

The right shoulder plate shows the squad badge, which indicates the tactical specialty of the squad the Astartes belongs to and the number of his squad within his company. Veteran Squads use a Maltese cross, Battleline Squads use an arrow, Close Support Squads use four perpendicular arrows pointing outwards and Fire Support Squads use an inverted V.

Space Marines in Terminator Armour wear the Crux Terminatus on their left shoulder plate, and their Chapter badge on their right shoulder plate.

A sergeant's badge of rank is the red skull and is often displayed on the left shoulder. The Codex leaves the display of back banners to the sergeant's discretion.

Space Marine helmets frequently display rank and battle honours, either through colour or insignia. Red helmets, for example, are reserved for sergeants, whilst a white helmet or laurel design denotes Veteran status.

Veteran sergeants typically wear both colours, incorporating a white stripe down the centre of their helm.

Whilst company colours are typically displayed on the trim of a Space Marine's shoulder guards, they can also be displayed on helmets, chest Aquilas, knee plates or even on the squad markings.

Vehicle Markings

VehicleTacticalSpecialtymarkings

Space Marine vehicle tactical specialty markings

The Codex Astartes has many pages devoted to regulations for the markings and heraldry of a Chapter's war machines and armoured vehicles. However, just as with Space Marine armour markings, the Codex also warns about complacency and the danger that enemy intelligence can pose.

SpaceMarineVehicleCompanyMarkings

Space Marine vehicle company designation roundels; note the colour of the roundel corresponds to the company's Codex-approved colour.

Because of this, the Codex encourages Chapter Masters to occasionally review their markings and offers many variants and alternative icons that can be displayed upon Space Marine main battle tanks.

Space Marine vehicles are generally painted in the livery of their Chapter. In addition to displaying the Chapter's icon, the vehicle's hull is also emblazoned with unit, squad and company markings, although the exact placement and application of these varies according to the Chapter and the vehicle in question.

VehicleIdentificationMarkings

Space Marine vehicle identification markings

In addition, the most ancient vehicles may display mottos as well as honour badges and names; for their roll of battle victories is as illustrious as that of any breathing hero of the Chapter.

Indeed, though every Dreadnought is assigned an identification number, this is quite often superfluous; every one is a famous hero of his Chapter whose names and histories are known even to raw recruits.

Troop transports, Centurion warsuits and armoured vehicles such as Assault Bikes, Attack Bikes and Land Speeders carry the same heraldry and organisational squad markings as the Space Marines that crew, or ride inside them.

Space Marine tank crew typically display their vehicle's Chapter numerical designation within a roundel upon their right shoulder guard. Whilst every company maintains a permanent number of Rhino armoured transports, other vehicles are attached based upon an individual mission's requirements. When a vehicle is attached to a company, a small roundel shows the company's number and/or corresponding colour.

Chapter symbols are displayed prominently on the hulls and turrets of Space Marine vehicles. Space Marine battle tanks and Dreadnoughts are assigned a unique identification number within the company. This is typically rendered as a numeral upon the vehicle's hull.

Army Campaign Badges

SpaceMarineCampaignBadges

Space Marine Campaign Badges

When fighting alongside other forces of the Imperium of Man, it is common for the Imperial commander to choose a simple symbol to act as the campaign badge. This army badge is used for the duration of the campaign and identifies every squad and vehicle in the task force.

Army Badges

Various Army Campaign Badges worn by the forces of the Adeptus Astartes.

Normally painted upon the hull of Space Marine vehicles and the greave of a battle-brother's armour, it is not uncommon for these badges to be incorporated into an individual's heraldry as a permanent honour somewhere on his power armour after the campaign's completion, either to commemorate exceptional deeds or as a mark of remembrance for the fallen.

Officers and Specialists

  • Captains - Wear the heraldry of their company, sometimes embellished with their own personal heraldry.
  • Librarians - Wear blue armour, irrespective of what Chapter they belong to so that they can be immediately identified by their brethren, and wear their Chapter badge as normal. This practice is now widely ignored, even among the more Codex-compliant Chapters.
  • Chaplains - Wear completely black armour, irrespective of what Chapter they belong to so that they can be immediately identified by their brethren, and wear their Chapter badge as normal.
  • Techmarines - Wear red armour traditionally, irrespective of what Chapter they belong to so that they can be immediately identified by their brethren, but some, Ultramarines Techmarines in particular, choose to sport their Chapter colors predominantly while still being heavily adorned with red. They wear their Chapter badge as normal.
  • Apothecaries - Wear white armour traditionally, irrespective of what Chapter they belong to so that they can be immediately identified by their brethren, but some, Ultramarines Apothecaries in particular, choose to sport their Chapter colors predominantly while still being heavily adorned with white. They wear their Chapter badge as normal.
  • Sergeants - Wear the same heraldry as their squad, but carry the squad's banner, which displays the Chapter badge and the squad's number, plus a red skull (the symbol of a sergeant). Sergeants often paint their helmets red, or in some cases wear a red skull in the centre of their helmet instead.
  • Veteran Sergeants - Wear the same heraldry as their squad, but carry the squad's banner, which displays the Chapter badge and the squad's number, plus a red skull (the symbol of a sergeant). Veteran sergeants often paint their helmets red like standard Space Marine sergeants and add an additional white stripe or laurel wreath that indicates their Veteran status.
  • Terminators - Veteran battle-brothers, usually of the elite 1st Company, who make use of Tactical Dreadnought Armour. In normal power armour, their Veteran status is often designated by a white helmet and a Maltese cross worn on their shoulder plate as their tactical specialty symbol.

Codex-Compliant Chapters

The Chapters that rigidly follow the word of the Codex Astartes are sometimes referred to as "Codex-compliant Chapters" or even simply "Codex Chapters." These Space Marines adhere to the Codex as the model for their organisation, identification markings and tactical doctrine. The Genesis Chapter, Red Scorpions, Praetors of Orpheus, Black Consuls, Novamarines and Hammers of Dorn, are strong examples of these vehement Codex Chapters. Of all of the Codex Chapters, the most famous is the Ultramarines, the Chapter of Roboute Guilliman himself.

Many Chapters, however, do not adhere so rigidly to the Codex patterns laid down for organisation or other processes. These Chapters are further shaped by their homeworld or the personality of their primarch, while still maintaining Codex compliance in many ways.

The Adeptus Terra has never decreed it necessary to enforce the Codex absolutely. Indeed, it is doubtful whether it could. However, with subsequent Foundings, they have always favored the Ultramarines' gene-seed and created many new Codex Chapters from their line.

With the passage of time, some of these Chapters have subsequently strayed from the strict letter of the Codex, introducing new variations but remaining broadly faithful to the principles laid down by Roboute Guilliman many thousands of Terran years before.

Non-Codex-Compliant Chapters

Blood Angels

Alatus Cadere - Winged Droplet

Chapter badge of the Blood Angels Chapter

The Blood Angels generally adhere closely to the organisation laid down in Roboute Guilliman's Codex Astartes, and the Chapter's Astartes are equipped in a similar manner to most other Space Marines.

However the Blood Angels and their successors among the Sanguinary Brotherhood that share their primarch's gene-seed collectively suffer from the Red Thirst and Black Rage which has lead to the necessity of several Codex deviations.

See Also

Dark Angels

Dark Angels Chapter Icon

Chapter badge of the Dark Angels

The Dark Angels make use of very different terminology when referring to the Chapter's officers as compared to that commonly used by other Space Marine Chapters.

This is because the Dark Angels have continued to draw upon the ancient military traditions of The Order of lost Caliban in organising the Chapter. In general, this terminology is also replicated in most, but not all, of the Unforgiven Successor Chapters of the Ist Legion.

See Also

Deathwatch

DeathwatchBadge

Chapter iconography of the Deathwatch

Although formally counted as a Chapter, the Deathwatch has a highly unusual organisation since it serves as the Chamber Militant of the Inquisition's Ordo Xenos, which bears little resemblance to that laid down in the Codex Astartes.

While a regular, Codex Chapter is organised so as to be highly mobile and flexible, and to be deployed almost anywhere in the galaxy on short notice, the Deathwatch often focuses on one threat, in one region. This means that a Watch Commander is able to tailor his forces to the task at hand.

Some watch fortresses stand guard over vast Ork empires, ever ready to oppose the nigh-unstoppable invasions they periodically unleash. Others guard against more shadowy threats, far harder to detect yet every bit as dangerous. Still more face a myriad of foes and must constantly adapt to an ever-changing strategic situation.

The Deathwatch has access to all of the specialised war machines used by other Chapters, and more. Even if a watch fortress makes no regular use of such equipment, it keeps mothballed stocks of everything from Attack Bikes to strike cruisers, for use as and when required.

In structure, the Deathwatch does not adhere to the strict organisation of squads and companies that the Codex Astartes dictates. The only relevant tactical unit is the Kill-team, which may be organised and equipped in any way the Watch Captains deem appropriate. In one mission the team may go to war on Space Marine Assault Bikes, and in the next mounted on a mighty Land Raider.

Those battle-brothers with the requisite knowledge might go to war clad in hulking Terminator Armour, or in lightweight Scout Armour with Cameleoline Cloaks. Occasionally, several Kill-teams are combined into a larger force, a sure sign that a highly dangerous foe is to be faced.

It is perhaps inevitable that Space Marines new to a term of service in the Deathwatch might experience a period in which they must adjust to this foreign mode of organisation.

This is especially the case when it comes to Chapters that adhere rigidly to the Codex Astartes, such as the Ultramarines and their successors. In practice, a battle-brother who could not adjust would not be sent to the Deathwatch, and those that do are often the most highly effective of warriors.

See Also

Space Wolves

Space Wolves Badge1

Chapter Badge of the Space Wolves

The Space Wolves strongly resist the central command structure of the Imperium. The sons of Leman Russ never fully bowed to the dictates of the Codex and certainly do not now.

Theirs is a philosophical deviance. Given that they live for the honour of battle, it is almost certain that the younger Space Wolves will abandon a standard tactical structure in favour of simply rushing headlong at the enemy, howling at the top of their lungs.

See Also

White Scars

WS Shield Livery

Chapter Badge of the White Scars

Following the defeat of Horus, during the tumult of the Second Founding, Jaghatai Khan was amongst those primarchs who willingly embraced the wisdom of Roboute Guilliman's great work, the Codex Astartes.

Ever since, the White Scars have adhered to the teachings of the Codex, but have always maintained the long-ingrained traditions of their own culture alongside them.

See Also

Codex Astartes Excerpts

"They shall be my finest warriors, these men who give themselves to me. Like clay, I shall mould them, and in the furnace of war forge them. They will be of iron will and steely muscle. In great armour shall I clad them and with the mightiest guns will they be armed. They will be untouched by plague or disease, no sickness will blight them. They will have tactics, strategies, and machines such that no foe can best them in battle. They are my bulwark against the Terror. They are the Defenders of Humanity. They are my Space Marines, and they shall know no fear."

—The Emperor of Mankind

"Let them bestride the galaxy like the gods of old. Sheltering Mankind from destruction at the hands of an uncaring universe."

Roboute Guilliman, as laid down in the Apocrypha of Skaros. (Space Marine Codex 5th Edition)

"Consider the magnitude of your duty at leisure, but act without hesitation when action is required."

Roboute Guilliman, as laid down in the Codex (Space Marine Codex 3rd Edition, "Legio Astartes Daily Rites")

"The warrior who acts out of honour cannot fail. His duty is honour itself. Even his death -- if it is honourable -- is a reward and can be no failure for it has come through duty. Seek honour as you act, therefore, and you shall know no fear."

Roboute Guilliman, (Space Marine Codex, 4th Edition)

"They shall be pure of heart and strong of body, unsullied by doubt and untainted by self-aggrandizement. They will be bright stars in the firmament of battle. Angels of death whose swift wings bring extermination to the enemies of man. So it shall be for a thousand times a thousand years, unto the end of eternity and the extinction of mortal flesh."

Roboute Guilliman, (Ultramarines Codex, 2nd Edition

"As you are a knight in service of the Emperor, so is the Rhino your steed. Honour it, respect it, see that its needs are met, and it shall serve you well through all the battles you must face."

Roboute Guilliman, as laid down in the Apocrypha of Skaros (Space Marine Codex 5th Edition)

"Of the Tactical Space Marine, bedrock of his Chapter and paragon to his brothers, I shall tell thee. He shall be steeped in the lore of battle and schooled in all manner of weapons and strategy. With Combat Blade, Boltgun and Grenade shall he assail the foe. But these are mere tools: a Tactical Marine's true weapons are his courage, his wits and his dedication to his brothers. He will bring the foe to battle in a manner and time of his choosing, never himself caught unready or ill-prepared for the task at hand. In defence he shall be as stalwart as the mountain, a bulwark stood firm against the enemies of Man. In attack he shall strike with the wrath of the Immortal Emperor, felling the foe without mercy, remorse or fear."

Roboute Guilliman, as laid down in the Apocrypha of Skaros (Space Marine Codex, 5th Edition)

"And of the Assault Marine so do I decree: He shall descend upon the perfidious foe as an Angel of Judgement from on high. Let the jump pack be his wings and the roar of its engines a hymn of retribution. Let the chainsword be his sceptre of decree, its harsh voice singing joyfully with each and every blow. With it shall the Assault Marine bring bloody retribution to the heretic, the traitor and all alien transgressors who trespass on the Emperor's domains. So will the Assault Marine be the hunter of warlords and the slayer of kings. His armour shall run slick with the life blood of the vanquished, and all shall honour his name"."

Roboute Guilliman, as laid down in the Apocrypha of Skaros (Space Marine Codex 5th Edition)

"A Devastator's reach shall be without limit and his touch without mercy. Fire shall roar from his fingertips, but it shall consume him not. Thunder will roar when he calls, yet it will swallow him not. Let the Devastator Squad be thy blazing wrath, bringing the light of the Emperor's justice to the darkest corners of the battlefield. Wherever he stands, that shall be his fortress of righteousness. He shall hold in his gift the fate of all who pass before his unblinking gaze. All shall fear him, and he shall fear no one."

Roboute Guilliman, as laid down in the Apocrypha of Skaros (Space Marine Codex, 5th Edition)

"Use your Bike Squad as a blade, striking the enemy and turning aside his counter-blows in equal measure. But in all things beware that speed is nothing without direction, just as even the mightiest weapon is worthless without careful aim. A Biker's stance should always be resolute and dauntless, but never immobile or rigid. Speed is his advantage, and surprise his deadliest weapon. In fluidity he will find success and in success shall he find renown."

Roboute Guilliman, as laid down in the Apocrypha of Skaros (Space Marine Codex, 5th Edition)

"As a commander your tools and devices shall be myriad, yet the wise man knows that battles are won by flesh, not the machine. Flesh can learn, whilst the machine must be forever instructed. Flesh knows loyalty to its brothers and veneration of its Emperor, whilst the machine knows not these things. Whenever the day is darkest and victory in doubt, look not to the machine for aid, but to your Battle-Brothers. The machine can only bring victory if you tell it how such a thing can be done. Your brothers will walk through fire, they will stride through the most terrible carnage at a single word from your lips and they will bring you victory simply because you ask it of them."

Roboute Guilliman, as laid down in the Apocrypha of Skaros (Space Marine Codex, 5th Edition)

"Make the Predator's virtues your own. Let your resolve become as impervious as the Predator's armoured hull and let your rage strike with the righteous fury of its guns. As it crushes the foe beneath its remorseless advance, so shall you smite the traitor and the alien without hesitation or regret. Know that to take the field alongside a Predator is to fight at the side of one of mankind's most honoured guardians. To strive with less than your all beneath its Iron Gaze is to dishonour yourself and your Battle-Brothers before one of mankind's greatest heroes."

Roboute Guilliman, as laid down in the Apocrypha of Skaros (Space Marine Codex, 5th Edition)

"Know thy duty, and discharge it above all else."

Codex Astartes, Chapter IV, Verse 1 (Deathwatch: Rites of Battle, pg. 14)

Videos

Sources

  • Codex Adeptus Astartes - Space Marines (8th Edition), pp. 8-10, 14, 73, 84, 93, 100
  • Codex: Blood Angels (5th Edition), pp. 7-8, 25, 27, 40, 80
  • Codex: Dark Angels (6th Edition), pp. 11, 14-15, 17, 33, 35, 46
  • Codex: Space Marines (4th Edition), pp. 7-9
  • Codex: Space Marines (5th Edition), pp. 7-9, 21-22
  • Codex: Space Marines (6th Edition), pp. 8-15, 246
  • Codex: Space Marines (8th Edition) (Revised Codex), pp. 6-21, 184-185
  • Codex: Space Marines (9th Edition), pp. 7-41
  • Codex: Space Wolves (5th Edition), pp. 9, 14
  • Codex: Ultramarines (2nd Edition), pp. 9-10, 12-13, 17-19, 22-23, 25, 28-30, 32-36, 39
  • Deathwatch: Core Rulebook (RPG), pp. 12-15, 38, 43, 45, 52, 54, 79, 153, 174, 182-184, 312
  • How to Paint Space Marines (2004), pp. 34, 36, 38, 40-42, 44-48, 93-95
  • Insignium Astartes: The Uniforms & Regalia of the Space Marines by Alan Merrett, pp. 9-38, 40-49, 51
  • Index Astartes I, "Codex Astartes: The Holy Tome of the Space Marines," by Rick Priestley and Andy Chambers, pp. 11-16
  • Index Astartes III, "Warriors of Ultramar: The Ultramarines Space Marine Chapter," by Graham McNeill, pp. 18, 22
  • Warhammer 40,000: Rulebook (6th Edition), pp. 168, 187, 225, 389, 403
  • White Dwarf 299 (UK), "Creating a Chapter," pp. 72-75
  • Age of Darkness (Anthology) edited by Christian Dunn, "Rules of Engagement" by Graham McNeill
  • Armageddon (Novel), by Aaron Dembski-Bowden, pp. 464
  • Stratagem (Audio Drama) by Nick Kyme

Gallery

Primaris Space Marine Forces
Command Primaris CaptainPrimaris LieutenantVanguard LieutenantPrimaris Ancient
Specialists Primaris Apothecary (Helix AdeptApothecary Biologis) • Primaris LibrarianVanguard LibrarianPrimaris Chaplain (Judiciar) • Primaris Techmarine
Veterans Bladeguard VeteranVeteranVeteran IntercessorVeteran Assault IntercessorSternguard VeteranTerminator (Assault Terminator)
Battleline Intercessor (Heavy Intercessor) • Vanguard Infiltrator
Close Support InceptorReiverIncursorAssault IntercessorJump Pack IntercessorOutrider
Fire Support AggressorDesolation SquadEradicatorHellblasterVanguard EliminatorVanguard SuppressorInfernus SquadFirestrike Servo-turretHammerfall Bunker
Combat Walkers and Vehicles AstraeusRedemptor Dreadnought (Brutalis DreadnoughtBallistus Dreadnought) • RepulsorRepulsor ExecutionerImpulsorGladiator (Gladiator ReaperGladiator ValiantGladiator Lancer) • Raider Pattern Combat BikeInvader ATVInvictor Tactical WarsuitStorm Speeder (Storm Speeder HailstrikeStorm Speeder HammerstrikeStorm Speeder Thunderstrike)
Aircraft OverlordDrop Pod
Space Marine Forces
Chapter Command Chapter MasterMaster of the KeepMaster of SanctityChief LibrarianMaster of the ApothecarionMaster of the ForgeMaster of the WatchMaster of the FleetMaster of the ArsenalMaster of the MarchesMaster of the RitesMaster of RelicsChief VictuallerLord ExecutionerMaster of RecruitsMaster of ReconnaissanceMaster of the SignalChapter AncientPrimaris AncientChapter ChampionHonour Guard
Company Command Command SquadReclusiam Command SquadCaptainPrimaris CaptainLieutenantPrimaris LieutenantCompany AncientCompany Champion
Specialists Librarian (EpistolaryCodicierLexicaniumPrimaris LibrarianVanguard Librarian) • Chaplain (ReclusiarchPrimaris ChaplainJudiciar) • Apothecary (Primaris ApothecaryApothecary BiologisHelix Adept) • Techmarine
Veteran Squads Veteran Marines (Sternguard VeteranVanguard VeteranVeteran IntercessorVeteran Assault IntercessorBladeguard Veteran) • Terminator SquadTerminator Assault Squad
Battleline Squads Tactical SquadIntercessor Squad (Heavy Intercessor Squad) • Infiltrator Squad
Close Support Squads Assault SquadAssault Intercessor SquadJump Pack Intercessor SquadInceptor SquadReiver SquadIncursor SquadSuppressor SquadBike SquadOutrider SquadCenturion Assault Squad
Fire Support Squads Aggressor SquadDesolation SquadDevastator SquadHellblaster SquadEradicator SquadEliminator SquadInfernus SquadCenturion Devastator Squad
Neophyte Squads Scout SquadScout Bike Squad
Light Vehicles Assault BikeAttack BikeScout BikeRaider Pattern Combat BikeInvader ATVLand Speeder (Land Speeder StormLand Speeder TempestLand Speeder TornadoLand Speeder TyphoonLand Speeder VengeanceLand Speeder ProteusDarkshroud) • Storm Speeder (Storm Speeder HailstrikeStorm Speeder HammerstrikeStorm Speeder Thunderstrike)
Combat Walkers Dreadnought (Castraferrum DreadnoughtSiege DreadnoughtHellfire DreadnoughtIronclad DreadnoughtVenerable DreadnoughtMortis DreadnoughtChaplain DreadnoughtLibrarian DreadnoughtFurioso DreadnoughtDeath Company DreadnoughtRedemptor Dreadnought (Brutalis DreadnoughtBallistus Dreadnought) • Wulfen DreadnoughtDoomglaive Dreadnought) • Nemesis DreadknightInvictor Tactical Warsuit
Armoured Personnel Carriers RhinoRazorbackDamocles Command RhinoRhino PrimarisRhino AdvancerImpulsor
Main Battle Tanks Predator Destructor (Predator AnnihilatorBaal Predator) • Land Raider (Land Raider PhobosLand Raider CrusaderLand Raider RedeemerLand Raider AchillesLand Raider PrometheusLand Raider Terminus UltraLand Raider AresLand Raider ExcelsiorLand Raider Wrath of MjalnarLand Raider Angel InfernusLand Raider Solemnus AggressorLand Raider Anvilarum) • Deimos Vindicator Laser DestroyerRepulsorRepulsor ExecutionerGladiator (Gladiator ReaperGladiator ValiantGladiator Lancer) • Astraeus
Artillery WhirlwindVindicatorStalkerHunterWhirlwind HyperiosLand Raider HeliosThunderfire CannonFirestrike Servo-turret
Aircraft/Air-Deployed StormtalonThunderhawkThunderhawk TransporterShadowhawkStormravenStorm EagleFire RaptorStormhawk InterceptorCaestus Assault RamDark TalonNephilim JetfighterStormfangStormwolfCorvus BlackstarOverlordDrop PodHammerfall Bunker
Rare, Relic or Retired Vehicles Contemptor Pattern DreadnoughtDeredeo Pattern DreadnoughtCerberus Heavy Tank DestroyerLeviathan DreadnoughtJavelin Attack SpeederJetbikeDeimos PredatorDeimos RhinoSabre Tank HunterLand Raider ProteusKratos Heavy Assault TankMark IIb Land Raider PhobosMalcador Assault Tank (Malcador Annihilator) • Sicaran Battle TankSicaran VenatorSicaran Punisher Assault TankSicaran Arcus Strike TankSicaran Omega Tank DestroyerSpartan Assault TankTyphon Heavy Siege TankFellbladeFalchionMastodonDeimos Whirlwind ScorpiusXiphon Pattern InterceptorStormbirdKharybdis Assault Claw
Raven Rock Videos
Warhammer 40,000 Overview Grim Dark Lore Teaser TrailerPart 1: ExodusPart 2: The Golden AgePart 3: Old NightPart 4: Rise of the EmperorPart 5: UnityPart 6: Lords of MarsPart 7: The Machine GodPart 8: ImperiumPart 9: The Fall of the AeldariPart 10: Gods and DaemonsPart 11: Great Crusade BeginsPart 12: The Son of StrifePart 13: Lost and FoundPart 14: A Thousand SonsPart 15: Bearer of the WordPart 16: The Perfect CityPart 17: Triumph at UllanorPart 18: Return to TerraPart 19: Council of NikaeaPart 20: Serpent in the GardenPart 21: Horus FallingPart 22: TraitorsPart 23: Folly of MagnusPart 24: Dark GambitsPart 25: HeresyPart 26: Flight of the EisensteinPart 27: MassacrePart 28: Requiem for a DreamPart 29: The SiegePart 30: Imperium InvictusPart 31: The Age of RebirthPart 32: The Rise of AbaddonPart 33: Saints and BeastsPart 34: InterregnumPart 35: Age of ApostasyPart 36: The Great DevourerPart 37: The Time of EndingPart 38: The 13th Black CrusadePart 39: ResurrectionPart 40: Indomitus
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