The image to the left has been concluded as 100% fake, which makes me curious on the legitimacy of this poster. As well as the Zombie picture could be on any map, it doesn't show anything and looks to be intentionally like that so you cannot tell what map it is, to hide the fact it is a previous map. Hmm, I think it's fake. Any more posters you could possibly get and show?
Edit: Definitely fake. Done a quick google search 'Black Ops Zombies' and this image was on the first page;
It's not even a Zombie picture, it's the mission 'Vorkuta' from the Campaign.