If you're referring to Call of Duty, yes you need to complete campaign to unlock Zombies.
Finish the game
you have to finish the game
It is inculded in the game, you just have to finish the campaign before you can play it
finish the game once and on the second playthrough he will show in 4-10 level
it doesnt finish, you go until you die
The zombie level in CoD5 is an extra level, after you finish the game. You access the game by going to the level select, on the single player menu.
no because i have that game and there are no zombies in that game. Plus why would there be zombies in there its a army game its what really happens in the army there are no zombies.
you get to watch the credits
it ends when u die
OK so what you do is you have to finish the game doesn't matter what difficulty it is on then you go to the level selection menu and usually it has it under downfall.
No it is a different game from the PS3 game with zombies
Incorrect! The game is "plants vs. zombies"