User blog comment:Solomus-BlackWing/A Legacy/@comment-4964060-20140415220647/@comment-3341288-20140415225129

Heres an idea. Okay, so we have our Cabal. And they encounter a xenos-organization via human traitors and sympathizers. Could be a alliance of races who were vanquished during the Great Crusade and after to destroy the Imperium. Could offer a great many enemy varieties.