Beat the game on hardend or just put the cheat in at the computer at the main menu by getting out of the chair, go on GameFaqs.com
It does have a zombie mode and it is really fun.
Black Ops
Yes, there is.
No
zombie mode is in black ops because of public demand. tryarch was to help make black ops and in world war tryarch made nazi zombies so when they made black ops they included it in
Black Ops has a zombie mode
five
Yes
Yes
no
(sadly) there is no zombie mode in CoD 4. the only zombie modes (so far) is the sombie mode in world at war and the zombie mode in black ops.
You hack it