I don't know about you, but it sure doesn't take me two games to earn this much exp. If you do a game of Spartan Ops, you get 4,000-5,999 and online for War Games usually 1,500-2,900.

On another note, I beat the campaign with my friend. It was really fun and the ending wasn't really as bad as people described it. It was sad, but still wasn't terrible. If you guys haven't seen this reward system for Halo 4, you should check it out. You get Microsoft points for being an addict. It's on the official Xbox Live Rewards site. Usually the rewards suck, but these actually aren't too bad if you play a lot.

http://rewards.xbox.com/halo-4/