L96 is for quickscopers
The AUG and the G11 are friggin AWESOME. Sometimes I use the MPL, but not much. I recently decided to give the M60 a whirl, and I must say I like it, but it's tough to choose between Sleight of Hand and Steady Aim when using it. See, the reload time for it is pathetically slow, even with Sleight of Hand, but Steady Aim sure helps when you don't have to aim down the sights.
Surprisingly, I like the Asp. No one else in the whole game uses it, but I like me a pair of akimbo Asps. With Steady Aim, of course. RPGs make for some good lolz, Strela-3 is a lifesaver, gotta love a crossbow every once in a while. A Python with ACOG scope is HILARIOUS.
As for the perks and grenades and stuff, ALWAYS ALWAYS ALWAYS:
Semtex
Concussion
Claymore or C4
Scavenger
Sleight of Hand or Steady Aim
Marathon or Hacker