Board Thread:Warhammer 40k General Discussion/@comment-5846164-20130211074649/@comment-3258762-20130217084827

Codex Space Marines. Written exclusivley by Matt Ward with no outside interference.

A little extract from it: "Chapters [not descended from Guilliman's geneseed] are disciples who owe their genetic inheritance to another Primarch, but follow the Codex Astartes  as keenly as their divergent heritage allows. While primarily composed of successor Chapters, this group also includes several Chapters of the First Founding  - notably the Imperial Fists , White Scars  and the R aven Guard. These chapters can never be  Ultramarines, for their gene-seed is not that of R oboute Guilliman . Nevertheless, they will ever aspire to the standards and teachings of the great Primarch .

And then we have this: " [Chapters who do not emulate the Ultramarines] are aberrants; chapters who, through quirk of gene-seed, mutation or stubbornness, eschew the Codex Astartes in favor of other structural and combat doctrines. Some, such as the Blood Angels  and their successors, strive to be worthy of Guilliman's legacy, but their recalcitrant gene-seed drives them ever further from it. Others, such as the Space Wolves  and the Black Templars , remain stubbornly independent, looking to their own founder's ways of war and caring little of how they fare in the eyes of others. These aberrant Chapters were always few in number and their presence diminishes with each passing decade, for their gene-seed is no longer the source of fresh Chapters."