User blog:Cpl. Esquire/leveling tips

Hey guys. i'm level 66 1st prestige on MW2 and i'm leveling up really slowly and im just wondering if anyone has any tips for me to help level up faster. i really want to catch up with my friends who got the game as soon as it came out and stop being the lowest leveled out of all of them when i'm the most skilled out of them all. all help would be appreciated. thanks.