Heavy machine guns (HMG) are placed on the ground, supported on a tripod, or on a vehicle. The vehicle would have a support for the gun with a rotating base or turret. Heavy machine guns often need two men to operate it, one to assist with loading ammunition, and one to aim and fire. It always takes two or more men to carry one. Famous examples include the M2 Browning machine gun, the MG42, the M1919 Browning, the M134 minigun, the Type 92 heavy machine gun, and the Maxim gun.