Power Level..?

So a long ass time ago I created my Combat Arms account but I had trouble leveling him up and didn't get very far plus he got banned. But now I'm looking to get back into it, how does one power level in this game? And if anyone can possibly power level me if it's possible, please do so!
Thanks.

Yeah, #BMQR (Black Market Quarentine Regen) but it involves taking risks and yeah. Basically you join a QR game in BM and afk with passes (or no passes) and get around 900 EXP per game.