User blog comment:Primarch11/Guilliman Heresy/@comment-3245042-20120615152958/@comment-4608429-20120615225554

Prehaps the Blood Angles could turn Tzeencthian? The turn tratior, but at some point Sanguineus dies and this leads to rampart mutation in the Blood Angles. You then take the charicter of Mephesdon forward 10,000 years (or have someone like him) to cast the Rubic of Mephesdon, creating rubic marines (that are close combat orentated).

As for the other God's they could have the Iron Warriors, for perfict fortifcations, or Iron Hands, for striving to atain perfection of the flesh. The Iron Warriors, however, are the only real viable opton for Nurgle, in my opinion. The Space Wolves or White Scares for Khorne, and the rest are neutral (my opinion only)

The Thousand Son's mutation could be stoped by soul binding them to the Emperor (take a page from the Dorian Hearsy Timeline). This deals with all of Supah's points.

Also, can everyone stop bitching about how it won't work and start coming up with ways to actualy make it work?