U.S. Marine Corps Cpl. Travis Sernulka, a UH-1Y Huey crew chief, fires the GAU-17/A Gatling gun Feb. 27, 2015 in Sabah, Malaysia during a theater security cooperation event.

‘One of the best jobs in the Corps,’ says Marine who gets to fire 3,000 rounds a minute

"We are kind of like a SWAT Team, a police force, firefighters, EMTs, and car mechanics all wrapped into one."