US Machine Gun M60E3 ( USA)

Cartridge: 7.62 x 51mm NATO
Magazine: 100-round disintegrating belt
Fire modes: Single shot/Fully Automatic

The M60 Machine Gun has been the US Army's general purpose machine gun since 1950. It fires the standard NATO 7.62 mm round and is used as a general support crew-served weapon.

M249 SAW (Squad Automatic Weapon) ( USA)

Cartridge: 5.56 x 45mm NATO
Magazine: 100-round disintegrating belt
Fire modes: Single shot/Fully Automatic

The M249 was developed to replace the shortfall the U.S. Army had in a squad-based automatic weapon, one that had never been fulfilled since the retirement of the WW2-era BAR in the 1950s. Using the same round as the M16A2, it is a lightweight and reliable weapon, reckoned to be provide the same amount of firepower as 10 M-16 riflemen in defence.

RPK-74 ( Russia)

Cartridge: 5.45 x 39mm Soviet
Magazine: 45-round detachable box
Fire modes: Single shot/Fully Automatic

Adopted by the Soviet army in the late 1970s, the RPK-74 is the Soviet equivalent of the U.S. M249.

PK ( Russia)

Cartridge: 7.62 x 54R Soviet
Magazine: 30-round detachable box
Fire modes: Single shot/Fully Automatic

The 7.62-mm general-purpose machine gun Pulemyot Kalashnikov (PK) is a gas-operated, belt-fed, sustained-fire weapon. The Soviets based its design on the Kalashnikov assault rifle.