I just started using this tonight, but it's been working great and a ton of fun to use.

AK74u w/ Supressor
Python w/ Dual Wield

Tomahawk
Decoy
Claymore

Lightweight
Steady Aim
Ninja

Basically just running around knifing or shooting people. I'm still working on the pro perks, but that'll happen eventually.

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So what have you guys been using recently?

Haha, Pythons are beast if you're good with em.

Planning to stick to the same shit this game (especially with perks-don't really feel like completing three objectives for more than a few of them multiple times...).

Commando/Famas w/ Extended mags
Python - Akimbo(yeah, I'd rather say that)

Frag
Flash
Claymore(broken pieces of shit)

Hardline
Sleight of Hand
Marathon

Use the same stuff for the WA20000 except for using the Variable Zoom and Steady Aim.

I just prestiged, but:
AK47 @ Extended Mags + Reflex Sight (Green Burst)
C275 @ Full-Auto (I like firing in 3-4 round bursts)

Frag (x2)
Concussion (x3)
Motion Sensor (so clutch)

Flak Jacket / Hardline
Warlord Pro
Second Chance Pro

Oh, and with the settings above, I use Spy Plane/ RC XD, Care Package/ Gunship, and Attack Helicopter killstreaks.

Until I hit Prestige 14, aside from random builds I usually just run headquarters w/ this.

Famas
W/grenade launcher
RPG

Frag (x2)
Nova (x2)
C4

Flak Jacket Pro
Warlord Pro
Tactical Mask Pro

Counter-Spy
Care Package
Attack Dogs

Rpg, C4, and Tactical Mask can seem retarded.. But for headquarters, they're quite lovely. Tactical Mask I rather hate, but for how often the tacticals get thrown around, its nice to not have to worry about anything except killstreaks and bullets while capturing. :P

Hehehe, Im not a pro like many of you, but I have a reasonable 0.9 to 1.3 Average KD, but yeah I use a Sniper, and am trying to get good at it.

PSG1 - Variable Zoom
Crossbow

Semtex
Concussion
Claymore

Flak Jacket (Sometimes Ghost)
Sleight of Hand Pro
Ninja

Spy Plane
Counter Spy Plane
Care Package

Yeah, I use 3,4,5 set up because Im not a pro. I made a mistake last pretiges when I got a 11 killstreak fluke then blew my $6000 on Chopper Gunner, the bad thing was I only used it once in the whole pretige :/

I use Crossbow because its real good fun, but if Im palying serious Domination on Jungle, then for the entire match I camp on top of the cliff, and pick off people trying to cap the flag, and I have the C flag within range too :)
But yeah I wouldnt call myself a camper, more of a sniper