Editing Corsairs Gallant (section)

==Gene-seed flaws and other Mutations==
Either by flaw or by design, the gene-seed of Rahman Keita'mansa is incredibly restrictive in its implantation rates, with rejection rates significantly higher than normal. It is for this reason that the Corsairs Gallant have always been the smallest of the legions, at least sparing the lowest points of the Brotherwar where casualties rose to astronomical heights for some others. This limitation has informed their combat doctrine, leading to the rapid tactical strikes and covert operations, and the shock-and-awe lightning strikes that maximize efficiency and minimize causalities on their side. It is also why, ironically, they hid away a portion of the legion, the Fillibusters and Blackshields, operating under false-flags to further their goals long before they ever entered the picture officially, if ever.

===The Geneforged===
Developed after the Brotherwar, the Geneforged were an attempt to adapt other methods to implantation and generation of Astartes, utilizing information gleaned from the creation of the Custodes that was stolen by Corsairs Gallant assets during the Siege of Terra. The results were mixed, though promising enough that Rahman continued even after early failures, and was eventually driven to extreme ends, incorporating xenos genetic material (specifically, that of the Kroot,) in an attempt to increase the success rates. Though this was promising, the geneforged tended to be somewhat unstable and most did not last long in service. However, true tragedy stuck as Rahman used fresh samples of his own genetic material in their continued creation, leading to influence of the Halo Device on more and more.

When Rahman fled into parts unknown, he took the vast majority of geneforged with him, particularly all the later generations, concealing the dark secret from the galaxy...

===The Ghasts===
The galaxy at large does not know the creatures known as the Ghast are, in fact, the direly mutated descendants of Rahman's geneforging experiments. Rahman and his coterie fled into the region of the Halo Stars known as the Ghoul Stars, driven by some unknown purpose, and constructed the roving fleet of vessels using the ''Chrysaor's'' dry dock capabilities. Striking out from their hidden haunts, they reave planets for material both inorganic and genetic, kidnapping large portions of the population for unknown but almost certainly grisly reasons. 

Created by a mixture of Kroot genetic influences and the corrupting effects of the Halo Device on Rahman's source genetic material, Ghasts are pale, ghoulish creatures of considerable size and power, in excess of a normal Astartes, but also bearing a dire and consuming hunger for flesh. What they consume in turn changes them further, and ghasts are known to possess radically different forms as a result. Hulking creatures, they rarely make use of power armor any more, though they often do have sorts of enhancing frames bolted onto their forms and armor plating as well, a strange mix of refined and crude plating that often takes the form of bony-looking exoskeletons.

They also make use of similarly genetically warped humans as horde troops, choosing those that excel to be ascended into status as full Ghats, and thus replenish their numbers. Thus, the Ghasts are a dire, if localized, threat for the Imperium, but one whose true origins are essentially unknown. Their leader, the monstrous Archregent, is in truth a heavily warped Rahman, still fighting the baleful influence of the Halo Device, and pursuing ends seemingly half his own and half that of the device.