User blog comment:SniperGhost/Death Before Dishonor/@comment-1745925-20100612095917

Meanwhile, Kh'err'akh'an opens a portal to Commorragh and unleashes the full might of his Kabal, along with several other Kabals which he bullied into service, and utterly destroy the Astartes, making the Grey Knights have to fight a war on two fronts.

Not good line of thought.