Zombie Killin' Fun

I discovered a little fun tid bit on my newest Call of Duty game. After completing the whole game, a new level is opened. It is a level full of Nazi zombies for you to kill. GREAT fun. You are stuck in a building with several windows blocked off. Slowly, Nazi zombies start to tear down the barriers and try to eat you. You start off with a pistol, which sucks, but you can buy more weapons when you gain points. You can also open additional rooms and better guns are in the different rooms. Shot guns are pretty effective in large groups of zombies, but you have to watch out with grenades. They tend to blow the legs off the zombies, which leaves you with zombie torsos crawling on the floor trying to bite your knees. The game doesn't really go anywhere, but it you go up levels the more zombies you kill. Higher levels mean more zombies and faster zombies. It is creapy fun.