M247H machine gun

The M247H Heavy Machine Gun, formally known as the Machine Gun, Caliber 7.62 mm, M247, is a heavy weapon used extensively by the United Nations Space Command ground forces. It is a variant of the widely used M247 General Purpose Machine Gun.

Design details
The M247H is an air-cooled, gas-operated, electrically fired, linkless-fed weapon. It can be used in both anti-personnel and anti-vehicle roles. It is most often seen mounted on stationary tripods and used as a defensive weapon, but can also be carried by those strong enough to efficiently operate it. An M247H is mounted on either side of most UH-144 Falcons.

Like many other support weapons used by the UNSC, the M247H is fitted with a metal shield near the rear of its barrel to protect the user. Some versions, including the one mounted on the UH-144, lack this feature.

Trivia

 * Chief Warrant Officer Jorge-052, a SPARTAN-II commando, utilized this weapon throughout the Human-Covenant War. His customized M247H lacked the shield plate, which was replaced by a heat cover over the barrel and many other smaller differences. Judging by its appearance, it is possible that Jorge-052 prefered an older model of the M247H.
 * The M247H is erroneously labeled as the AIE-486H Heavy Machine Gun in Bungie.net game stats.
 * It is prone to overheating in Halo: Reach.