Call of Duty: Black Ops 2 has a ton of game modes you can play but all of them don’t give you the same amount of experience or score. As Black Ops 2 is promoting objective based gameplay, it seems fit that objective game modes like Domination give you more experience and score compared to kill only modes like Free For All or Team Deathmatch.
(Black Ops 2 - Terrible Sound @DavidVonderhaar)
#Sarcasm
Nothing can prepare you for THAT GUY who stands in the doorway and doesn't move so you BOTH get killed.