M2 Heavy Machinegun

Overview
The Browning M2 is an air-cooled, belt-fed, heavy machinegun that has served the U.S. military since WWII to the present. It has also found usage in the military forces of various nations worldwide. The M2 is a scaled-up version of the older M1917 .30-caliber machinegun; the M2 is chambered for the powerful .50 Browning Machine Gun (12.7x99mm).

In MGS4
The M2 appears in MGS4 primarily as a PMC support weapon; it can usually be found mounted alone or on a Stryker or Humvee.