User blog comment:DBD Abyss/Call of Duty: Ghosts Nemesis DLC coming to Xbox Live August 5th/@comment-86.153.220.14-20140801203846/@comment-2080691-20140802034416

I think the OP is correct because I found it odd that Mark Rubin said "...and people start dying" rather than saying that the blizzard kills people. It was just odd the way he worded it so this would make sense. However, I don't think it's a Maniac reskin, it looked like it was fairly shorter than a regular soldier. I think it also seemed to move more like a creature than a human based on the way Infinity Ward showed it attacking the soldier.

My guess is either the Thing as in the sci-fi film or an alien from the Alien series. Both were featured in arctic-like atmospheres in at least one movie and they both move similarly to how the attacker in the trailer moves.