Okay, so I recently finished Colonial Marines and I have to say, I've been bugged by a single question for most of the game. What is the big xenomorph, apparently called The Raven, that captures and cocoons Winter? I didn't even know it had a name until I found a page for it on here. It's not listed anywhere (that I can find) as one of the new types of xenos created by Gearbox. Is it a praetorian? A mutated warrior? Anyone else got ideas?