What are the names of the 3 zombie maps in black ops and How do u get them?

I know the first one u automatically get but I think the second one us five and u get it after u complete campaign but what is the 3rd one called and how do u get it? Is the 3rd one the one coming out on febuary 1st? If not please tell me How to get the 3rd map.What are the names of the 3 zombie maps in black ops and How do u get them?
The third one is a whole new game type, its a bit arcade-y.

To unlock it once you finish the campaign, brake out of the main menu chair by tapping R2 and L2 (or R trigger and left trigger on xbox) and going to the computer at the back of the room. Then you need to type DOA into it :)What are the names of the 3 zombie maps in black ops and How do u get them?
The first map is unlocked by default. The next two are unlocked by completing the campaign or entering a code. The maps that you can unlock by entering the code are "five" and dead ops arcade. At the main menu where you choose on pressing either campagn multiplayer or zombies you press the aim and shoot buttons repeatedly. Walk over to the computer and enter this code: 3arc(space)unlock. For the forth map ascension you must purchase the map pack that comes out this tuesday.What are the names of the 3 zombie maps in black ops and How do u get them?
Kino der Toten

Five: you must clear the game first on any difficulty

Black ops Arcade: When you are in the main menu, you can tap LT and RT (or R2 and L2 in ps3) and you will escape from the chair, the you must go to a computer that is behind you, and you can acces it, then input the following code 3arc unlock. you must input the space between the two words.
the third map is Dead ops arcade just get of the chair by clicking {L2 N R2) A LOT n go to the computer n type in DOA