User blog comment:SniperGhost/Death Before Dishonor Blog 2/@comment-1932673-20100627091609

You can change it if you want. I choose them because they were the only lineage I could think of which would wouldn't clash with what we are about to write (such the freelance and tech) without seeming generic.

Blood Angels: Too Loyal, flaw might clash with what we write.

Space Wolves: Too Loyal, no diplomatic skills

Rogal Dorn: Already got the Soul Drinkers

Ultramarines: Generic

Iron Hands: Too mechanicus bound

White Scars: A little out of place with our soon to be written fanon

Dark Angels: Out of place (unless you want to do something simular to how the HOCD broke away)

Salamanders: Too concerned with civilian's lives to break away from the Imperium.

I am just saying why I think the Raven Guard's geneseed are better, not too generic and lack traits like overwhelming loyalty or the flaw to hold them back.