Best is a perceptive word.
So, my BEST for sniping?
Intervention - FMJ
Raffica - Akimbo
Claymore - Flash
Scavenger Pro
Stopping Power Pro
Steady Aim Pro
Painkiller
My BEST knifing class:
UMP45 - Silencer
.44 Magnum - Tactical Knife
Throwing Knife - Smoke
Scavenger Pro
Lightweight Pro
Commando Pro
Martyrdom