User blog comment:Abyssal Horror/Idea: Darkness Rising (DR)/@comment-9465750-20120427121051/@comment-3258762-20120427122007

Just for the record: It is not sure if Gulliman even killed Alpharius, or just a very tall Alpha Legionaire (it is actually possible that it happened) and almost certainly, the Alpha Legion split. Perhaps some part (such as the one led by the Primarchs, since according to Legion, they are indeed loyal...in an odd fashion) remained in material space and are loyal, while the majority is chaotic.

Otherwise, it seems good. But i doubt the Imperium will give a rats ass about the 'Nids if Chaos is closing on Terra. And, since the Imp will head to Terra (this we can be sure of) the Nids will be able to move in. Once inside, i doubt they will leave. Suddenly, it is no longer Chaos vs Imperium, it is Chaos vs Nids :D