If you're over level 45 (said you were almost 2nd prestige) use OMA. (You might get b*tched at)
Class 1:
Any Assult Weapon (w/GL)
AA-12 w/grip (recommended)
OMA
Danger Close
Ninja (pesky heartbeat senors)
Claymore
Class 2:
Any Assult Weapon (w/GL)
AA-12 w/grip (recommended)
OMA
Cold-Blooded
Ninja
Claymore
Those are the classes I use. When I go for a nuke, I try Domination since you know where the enemy team should spawn (but the spawn system usually fails).
W/o OMA:
Use a low-recoil weapon like the ACR. If you use the Scar, you could use Cold-Blooded since the Scar is powerful without it.
Scavenger Pro
Stopping Power or Cold-blooded
Ninja
Claymore
Originally posted by usance
I have a question if you have a gun with silencer in combination with cool blooded perk you still do not see on the radar (UAV)
Don't use the MG4 or M9 silenced for your weapons because you will show up on the radar, other than that, no.