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If you have the Defibrillator unlocked for the Assault class, constantly revive your fallen teammates or squad members. One revive is the equivalent amount of experience from a normal kill. If you don't have it unlocked yet, use the Assault's medkit or the Support's ammunition box and throw it into a crowd of people.

Don't worry soon there will be dlc that let's you get everything for $49.99 or $39.99 all weapons attachments kits vehicles and so forth and it's not a rip off because you should just play the game and not waste money on something that can easiy be gotten for free

I dont level up easily as well but if anything I play Conquest alot and make sure I myself destroy the object for more points. & if you can get 3 of your friends who have it and play Team Conquest.

GET SKILL SON!!!