Staff Sgt. Matthew A. Ratliff, HMLA-773 aerial observer, fires an M2 .50-caliber machine gun out of a UH-1N Huey helicopter during Operation Javelin Thrust July 21. The exercise allowed reserve Marines to keep current in their training as well as prepare for a deployed environment. - Staff Sgt. Matthew A. Ratliff, HMLA-773 aerial observer, fires an M2 .50-caliber machine gun out of a UH-1N Huey helicopter during Operation Javelin Thrust July 21. The exercise allowed reserve Marines to keep current in their training as well as prepare for a deployed environment.