M134 Minigun

The M134 Dillion Minigun is a 7.62mm NATO, multi-barrel rotary Machine Gun with a high rate of fire (up to 6,000 rounds per minute), employing Gatling-style rotating barrels with an external power source. In popular culture, the term "minigun" has come to refer to any externally-powered Gatling gun of rifle caliber, though the term is sometimes used to refer to guns of similar rates of fire and configuration, regardless of power source and caliber. Specifically, minigun refers to a single weapon, originally produced by General Electric. The "mini" of the name is in comparison to designs that use a similar firing mechanism but larger shells, such as General Electric's earlier 20mm M61 Vulcan Gatling Cannon. The M134 is found on many U.S aircraft, including the UH-60 Black Hawk.

Battlefield: Bad Company 2
This weapon makes an apperance in Battlefield: Bad Company 2 aboard the UH-60 Black Hawk. It has an extremely high rate of fire and surprisingly good accuracy, however, it is far easier to shoot someone when out of zoom to account for the movement of the helicopter. Also, the miniguns are capable of destroying every destructible piece of cover in the game, allowing the use of destruction 2.0 with relative ease.

Trivia

 * In the features list on EA's Bad Company 2 homepage, the miniguns mounted to the UH-60 Blackhawk are referred to as 'railguns' which is extremely inaccurate and misleading.
 * The miniguns have to "charge" before they can shoot at their highest rate.