you beat the game
You don't.
You Escape The Torture Chair Then You Type In <<<<< 3arc unlcok>>>This Unlocks You All Campaign Missions And The Zombie Mao 'Five'. You Have to Buy The Prestige Or Hardened Edition To Get The Call oF Duty World At War Zombie Maps
There is no Zombie Mode for Wii
No you can not unlock the zombie levels by playing co-op you can only do it by playing single player. Also if you play certain level in campaign you will unlock levels for zombies.
no
You need to complete the campaign and then you will unlock zombies>
No. All you get is new custom class slots, until you get to the really high prestiges.
PS2 does not have a Nazi Zombie map see related link
First there is no Hitler zombie, and second there are no last levels for zombies mode
The Nazi Zombies is over, in black ops 2 they said they were creating a new zombie story line. There will be no more Nazi Zombies.
Their are three new nazi zombie maps that you can buy from the playstation store for 10 bucks and the original that you get at the end of the game.
In Black Ops, You get FIVE and Dead Ops Arcade by completing the campaign or typing in 3ARC UNLOCK in the computer, And in World at War, You unlock Nazi Zombies (you have to on the Xbox 360,PS2 and PS3) and the map you get in World At War after beating the campaign or with cheats (PC and Mac only) is Nacht Der Untoten, Which you can get in Black Ops by getting Rezzuruction,Buy the Hardened or Prestige edition of Black Ops.