EL CENTRO, Calif. (Oct. 7, 2020) Naval Aircrewman (Helicopter) 3rd Class Michael Campbell, from San Diego, mans a M240D machine gun in a MH-60S Sea Hawk helicopter assigned to the “Black Knights” of Helicopter Sea Combat Squadron (HSC) 4, during Helicopter Advanced Readiness Program (HARP) training at Naval Air Facility El Centro, California. HARP is hosted by Helicopter Sea Combat Weapons School Pacific and is designed to enhance the helicopter sea combat weapons community’s realistic war fighting training via joint operations in an austere environment. HSC-4 provides vertical lift search and rescue, logistics, anti-surface warfare, special operations forces support, and combat search and rescue capabilities. (U.S. Navy photo by Mass Communication Specialist 2nd Class Ryan M. Breeden)