What is the code for unlocking the 4 extra world at war zombie maps on black ops for Xbox 360?

I dont care if it's used or not used for Xbox 360. Thanks! (Make sure it's the 25 please)What is the code for unlocking the 4 extra world at war zombie maps on black ops for Xbox 360?
There is no code to unlock the World at War maps in Black Ops. Your going to have to wait and see if they release them for everyone else as DLC down the road.What is the code for unlocking the 4 extra world at war zombie maps on black ops for Xbox 360?
There is no code you have to get the prestige edition of black ops

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