User blog comment:Agold21/New Black Ops Single Player Trailer/@comment-86.157.156.182-20101012145816/@comment-3005736-20101012160059

Yes anon, there is a mission that involves you going to a russian expermentation base to stop them from making something called Nova6 gas. This is a reference to the zombie website GKNOVA6. Chances are that is where the zombie breakout starts. Although I am sure it will not be to heavily based in that one mission or the entire game.