Best weapon?

Knife............

So OP, kills on 1 hit ;_;
XM8, Famas, SCAR-L / M1911
Not using any other class, even if I have Medic and Sniper :O

G3 .

So much fuckin' nope. Red dot is misaligned on the AN94 like a mother fucker.

FAMAS is by far the most OP, lower recoil than MG36, higher rate of fire with lower deviation, high ammo count + ammo pouch compared to other ARs.

MG36 is tied with QBB depending on set-up.

L96 isn't really OP. Get a SKS w\ Viper + Precision + DBS + Thunderbolt + A TW Assault and you're invincible.

G53 is just a better CQC version of MP5, AS-VAL turns its butt hole right-side up and goes to town.

Overall I'd have to say:

Assault: Famas

Medic: MG36\QBB

Recon: SKS

Engineer: AS-VAL/MP5