Complete the career mode
or type in "3arc unlock" in the computer
3arc unlock
you unlock it same time u unlock 4 and 6.
3arc unlock .
ahaha found out get out of the torture chair then go to the computer in the back and type in 3arc unlock and poof
u unlock five by completing the campaign or typing 3arc unlock in the computer other you have to pay or hack
you cannot unlock the map packs however after completing the storyline the zombies level "five" is unlocked another way to unlock five is by escaping the chair at the main menu by either pressing L2 R2 repeatably until you escape the chair then go to the computer behind you and enter in the code 3ARCUNLOCK all caps no spaces and it will unlock five faster then completing the storyline this will also unlock the DOA zombies minigame
you unlock "five" the pentagon level for zombies. you also unlock the dead ops zombie arcade game.
Well, to unlock the map Five, 3arc unlock is the best way, or to finish the campaign. If this doesn't work, then there is something wrong with the game. Try to return it or sell it.
3arc unlock - To unlock the nazi zombies map "five".3arc Intel - To unlock all enemy Intel. WARNING DISABLES ONE ACHIEVEMENT.
yes, there is Dead Ops Arcade. enter the code 3arc unlock to unlock this mode, and/or five.
"DOA" unlock Dead Ops. "ZORK" Unlocks an achievement. "3ARC UNLOCK" unlocks a Zombie map
level up to level five