You finish the missions and continue through the campain
i believe there are 15 prestige levels in call of duty black ops.once compeleted 15th prestige you will unlock gold camo for all of your weapons.
On Xbox live you beat all the levels then go to prestige
You need to unlock the weapons.
1,000,000,000 levels you will have 1,000,000,000.
an achievement
DOA -unlocks Dead Ops Arcade. 3arc unlock -unlocks everything 3(trey)arc! =.=
its one of the first things u unlock
Ranking up...
50 levels, 15 prestiges!!
level up
doa zork 3arc unlock
you can get it at campaign or unlock it on multiplayer