Osiron Pattern Contemptor Dreadnought

The Osiron Pattern Contemptor Dreadnought, or simply the Osiron Dreadnought was a variant of the ancient Contemptor Pattern Dreadnought and was used by the Thousand Sons Legion during the Great Crusade and Horus Heresy. The Contemptor Pattern Dreadnought was an ancient Imperial cybernetic combat walker used by the Space Marine Legions in the days of the Great Crusade and the Horus Heresy, 10,000 Terran years before the present day. Like the current patterns of Dreadnoughts now utilised, the Contemptor Pattern Dreadnought served as a cybernetic sarcophagus for an Astartes who had been so badly wounded in battle that his only chance for continued service to the Emperor lay in being interred within the cybernetic sarcophagus of a Dreadnought.

History
For many solar decades the arts by which the power of an Astartes psyker could be maintained medically within the armoured sarcophagus of a Dreadnought eluded the Thousand Sons and any other Space Marine Legion that tried, with the occupant experiencing a lingering death, madness or malign psychic phenomena. The Osiron Pattern Dreadnought came about as the result of Magnus the Red himself applying his brilliant mind to solve the problem, resulting in the creation of a device known as the "Osiron". This device takes the form of a crown of psychometric barrier lattice encasing the occupant's living brain. The Osiron device was difficult to construct and was barely understood by even the most learned psi-arcanists, though this did not stop the Thousand Sons from outfitting it to their Contemptor Pattern Dreadnoughts, with startlingly powerful results. Imperial records indicate that Magnus the Red, before the Council of Nikaea, gave the schematics of the Osiron device to all of the other Space Marine Legions, though it is most likely that most spurned this gift entirely. It is unknown if the Osiron Pattern Dreadnought is still used by the Thousand Sons, or if any other Astartes Legions or their descendants made use of the Osiron. Although it is known that the Blood Angels Chapter makes use of Librarian Dreadnoughts, however it is unknown if these Dreadnoughts make use of the "Osiron" device or use another means in which to entomb a Librarian without them going insane.

Armament
The Osiron Dreadnought mirriored the standard Contemptor Pattern Dreadnought armament with a twin-linked Heavy Bolter attached to one arm and a massive Dreadnought Close Combat Weapon on the other with a built-in twin-linked Bolter. The difference between the Osiron and a standard Contemptor was that the Osiron's Dreadnought Close Combat Weapon was always a Dreadnought Force Blade, and its twin-linked Bolter was loaded with Asphyx Shells. Smoke Launchers and a Searchlight complete the standard weapons load-out. The Osiron's standard weapons complement can be replaced with a number of different weapons to suit different tactical needs, including a Multi-melta, a set of twin-linked Autocannons, a Heavy Plasma Cannon, a Kheres-pattern Assault Cannon, a twin-linked Lascannon, a power-leeching Heavy Conversion Beamer, or the ability to equip another Dreadnought Close Combat Weapon with an built-in twin-linked Bolter. An Osiron can replace its second built-in twin-linked Bolter with a Heavy Flamer, a Plasma Blaster or a Graviton Gun, if equipped with a second Dreadnoght Close Combat Weapon. It can be outfitted with Extra Armour Plating and a carapace-mounted Havoc Missile Launcher. All Contemptor Dreadnoughts are protected by advanced Atomantic Shielding which generates a protective gravitic shield around the walker using an advanced Atomantic Power Generator and that provides greater protection from both ranged and melee attacks for the walker. However, when damaged, the Atomantic Power Generator can overload and result in a devastating miniature atomic explosion which can badly damage nearby allied units. The Osiron Dreadnought is also capable of using the psychic powers that it once wielded as a mortal warrior.

Unit Composition

 * 1 Osiron Pattern Contemptor Dreadnought (Thousand Sons Legion, 31st Millennium Only)

Wargear
An Osiron Pattern Dreadnought is armed and equipped with:
 * Twin-linked Heavy Bolters
 * Dreadnought Close Combat Weapon (Dreadnought Force Blade) with in-built twin-linked Bolter with Asphyx Shells
 * Smoke Launchers
 * Searchlight
 * Atomantic Shielding
 * "Osiron"

Osiron Pattern Dreadnoughts may replace their twin-linked Heavy Bolters with any of these options:
 * Dreadnought Close Combat Weapon (Dreadnought Powerfist) with in-built twin-linked Bolter
 * Dreadnought Close Combat Weapon (Dreadnought Chainfist) with in-built twin-linked Bolter
 * Multi-Melta
 * Heavy Plasma Cannon
 * Heavy Conversion Beamer
 * Kheres-pattern Assault Cannon
 * Twin-linked Autocannons
 * Twin-linked Lascannons
 * Twin-linked Volkite Culverins

Osiron Pattern Dreadnought may replace their in-built twin-linked Bolters from their second Dreadnought Close Combat Weapon (if present) with any of these options:
 * Heavy Flamer
 * Plasma Blaster
 * Graviton Gun
 * Meltagun

Osiron Pattern Dreadnoughts may also have a variety of vehicle equipment such as:
 * Extra Armour Plating
 * Havoc Missile Launcher

Adeptus Mechanicus Technical Specifications
The specifications of the class of Dreadnought are unknown to the Adeptus Mechanicus.

Gallery
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