either go through all the missions, or break out of the chair at the main menu by pressing l2 and r2, and walk over to the computer, and type in 3arc unlock
beat the campaign.
No you just have to beat the call of duty black ops campaign on any difficulty
by completing the campaign
If your referring to the "Nazi Zombies" map "Five", simply beat campaign on any difficulty.
This is simple you just proceed through the levles until you reach the end of the game:).
What you have to do is beat the campaign.
no it is a map you unlock after you beat solo campaign or you can unlock it by imputting a code into the computer in the main menu
Yes you can beat the singleplayer campaign or download patches 1.1-1.7
yes
I dont think they made a Call of Duty 5, there is Modern Warfare 1 &2 and Black Ops.... Which one?
you need to not die and you can beat it
No but just beat campaign and you get it. you can beat the campaignon any difficulty.