M2 machine gun or Browning M2. 50 caliber machine gun is American heavy machine gun designed by John Moses Browning. The weapon uses .50 caliber cartridge, much larger than Browning machine gun which used .30 caliber size. John invented the weapon during the World War I in 1918, when General John J. Pershing asked for a larger caliber machine gun, which proved effective in battle. The use of that weapon started in 1933, after John's death in 1926 and several manufacturers began to produce it. The weapon saw use in World War II and after the war in some conflicts and is used in infantry, as anti-aircraft gun on ships, aircraft, boats and on armored vehicles as anti-vehicular gun. Browning M2 is one of the few weapons to be produced today, along with M1911 pistol.
The Browning M2. 50 only appears in the mission "Day Of Infamy" where it can be used to shoot down Japanese planes and destroy the torpedos in the water. The weapon does not appear in the rest of the campaign.
The M2. 50 first appears in the prologue mission Tarawa where it is mounted on the LVT-2. It was used by Thomas Conlin to eliminiate Japanese units on the pier and to cover the squad's advance. The M2 next appears in the mission Henderson Airfield where Conlin used to clear the runaway from Japanese forces then used it to cover US Pilots from Zero fighters in order for them to take-off. The M2 returns in Tarawa where it is used in the same order as in the prologue. The Browning M2 also appear in some multiplayer maps such as Airfield.
The Browning M2 Water Cooled appears in Medal of Honor: Pacific Assault.