Call of Duty Black Ops:Points Adder(PS3,Xbox,PC)
Then type your gamer tag in "Enter your XBL username".
Secondly select amount of Experience and COD points you want to add to your account(up to 50K!)
Now press "Add Points and Exp now " and wait couple seconds for connecting to Treyarch Servers.
Thats all,weapons will be at your service right now!