MAIN: Famas, R.Dot (Dot, Blue/Green/Teal, Clear) - Highest fire rate/accuracy AR. I get longshots with it regularly, and it's amazing in CQC. Kicks up and right. Buy it and learn how to shoot it. I've seen more gold Famas's than any other gun. (Plus, if you're good with iron sights, ditch the dot for something more useful.)
SECOND: CSZ75, Extended Mags / Strela-3 - Pistol to get to the fight quicker, Strela if they like air support.
LETHAL: Semtex. Can't be thrown back. Super.
TACTICAL: Flashbang. Takes .75 seconds to throw, but the blind screen is LOOOONG.
EQUIPMENT: Claymore/Motion Sensor. - Claymore by default (because not everyone runs Hacker). Sensor if enemies are using Ghost a lot (which they always do) But, beware, Hacker Pro means they'll slip right through YOUR motion sensor undetected.
P1: Hardline - 2 kill Spy Planes or RC-XDs. Enough said.
P2: Sleight of Hand - Reload time is CUT IN HALF.
P3: Hacker - I don't die to Claymores anymore, ever, and as an added bonus, if they're camping, their equipment just gave away their position. And when you get it Pro, OMG. Turn enemy equipment into friendly equipment. But, you basically have to have a headset, because too many times I watch silently as my teammate knifes a turret I could have hacked. I used to have Marathon here, but I just ran into Claymore after Claymore... plus, who likes FIFTEEN captures in CTF?
RC-XD - Ghost makes Spy Plane totally worthless, and so many people use it. So I use this, and get double and triple kills. If you shoot it, I know where you are. And with Hacker, my CAR doesn't run into Claymores blindly anymore either. It's pretty sick.
Care Package - I'll reload that ammo into a Chopper Gunner.
Attack Helicopter - Fire and forget. Who cares if they shoot it down. Look for people aiming at the sky.