Board Thread:Warhammer 40k General Discussion/@comment-4851119-20140118095944/@comment-24332685-20140121022939

He eliminated the Thunder warrios becuse they were out dated. Astartes are the pinacle of genetically augmented warriors. For all we know the mystery primarchs could have cut some kind of deal to preserve their sons from elimination. I think the idea of hey I will surrender if you don't slaughter my sons is something the Emperor would do when he knows the untold destruction a Primarch with an entire legion at his command could cause. All I am saying is 1) there are variations between astartes of the same legion and 2) I do admit after implantation space marines do resemble their primarch but that doesn't mean they are identical. I could be wrong I could be right like 74 said this is all speculation because like in most discussions on here there isn't a lot of evidence. Either way the story behind it would be amazing.