Yes. Headquaters can give you lots of XP. You get 50XP for 1 kill, which means 25XP for 1 assist.
What Call Of Duty are you referring to
Play online matches like Team Deathmatch, Headquarters, etc. to earn XP
You earn xp by gettin more good members and winning clan battles
OpTic
Yes, it does.
It will. It was used in Call of Duty XP's livestream.
10 XP, I think.
play online and get KILLS!
Black Ops.
you have to alot of xp points
It's a Modern Warfare 3 Hardened Edition preorder code that was handed out to the attendees of Call of Duty: XP 2011 and can only be redeemed at xpredeem.com.
yes you can