Field scout was OP on some weapons (looking at you Machine Guns). My Deviant Gravity-A was a guaranteed 4 shot kill and had monster stability. It also carried 60 rounds! With equipment that granted extra heavy ammo, I would pick up 90 rounds each heavy drop. Assuming that I didn't miss any shots, I had potentially 22 kills from each heavy drop. More than a few times I have picked up heavy from the first drop and never switched weapons for the rest of the game.