Call of Duty:Modern Warfare 2

Whats your fav gun???

I won't have the game for another day or two.
What gun should I use when I first start up multiplayer matches???
What is the best perks to get at first???

The Scar-H silenced is my favorite :)

Perks:
Scavenger Pro
Stopping Power Pro
Steady Aim Pro

Killstreaks: Carepackage, Emergency Drop, Chopper Gunner