20000 xp a game in head quarters search and destroy 10-15000 xp a game 6 minute game
In Black Ops multiplayer you unlock the AK-47 at level 38.
U can either came the whole game. Or if u have black ops or mw3 get double xp
level 100
You have to be a level 26.
You unlock gold camo in black ops, when you reach prestige level 14, level 25.
Level 14
you unlock more emblems
Level 35
15 pristige level 50
To level up in black ops you must get kills and earn experience just like anyother call of duty games.
In Black Ops, you don't get an offline multiplayer account. It only shows your playercard from your online account. So the answer to your question is; you can't level up on your Black Ops splitscreen account because you don't get splitscreen accounts in Black Ops.
You get to level 50