LMG
>Commie: 10lb, 650rpm, 1000m effective & 3000m max range, box drum or belt with a fixed hard ammo box
>Murka: 17lb, 100-200rpm, 800m effective & 3600m max range, belt fed with soft ammo pouch
GPMG
>Commie: 16.5lb, 650rpm, 1000m effective & 4000m max, belt fed, fixed hard ammo box
>Murka: 28lb, 650rpm, 800m effective & 3725m max, belt fed, no ammo box
HMG
>Commie: 56lb, 650-750rpm, 2000m effective & 2500m max, belt fed
>Murka: 84lb, 450-600rpm, 1800m effective & 2500m max, belt fed
Super heavy MG
>Commie: 108lb, 600rpm, 3000m effective & 4000m max, belt fed
>Murka: Prayer….. America has to fight through 1.2km of 14.5mm fire before it can return fire with Ma Deuce.
tl;dr Even with no KPV, America still has to crawl through about 200m of enemy fire carrying heavier weapons before gaining the ability to return fire, while the enemy who is carrying lighter weapons can always pull back easier and keep Americans in that 200m sweet zone where they can't respond.