http://kotaku.com/5677841/you-wont-believe-who-is-killing-zombies-in-call-of-duty-black-ops
There a video and some screenshots in the link above but OMGAWD
This is a SPOILER. Note that it is in all caps. That means I'm really serious about just how spoiler the following information and images are. Don't want to know? Move along and don't read this post. DON'T click on the link.
Now that that's done.
We knew that a zombie mode was coming to Call of Duty: Black Ops, but weren't sure exactly how it would be delivered, given the more modern setting of the game this time.
Leaked videos of Call of Duty: Black Ops in action seem to show the solution as well as a terrific hook for the shooter's post-game zombie survival mode. This time around, instead of fighting off Nazi zombies as some nameless soldiers, you can take on the roles of John F. Kennedy, Richard Nixon, Robert McNamara or Fidel Castro as they fight to hold off the hordes in the Pentagon.
Seriously!