Provide all essential aviation ground support to a designated fixed-wing component of a Marine Aviation Combat Element (ACE), and all supporting or attached elements of the Marine Air Control Group (MACG). This support includes: internal airfield communications, weather services, expeditionary airfield services, aircraft rescue and firefighting, aircraft and ground refueling, essential engineering services, motor transport, messing, chemical defense, security and law enforcement, airbase commandant functions, and explosive ordinance disposal. Additionally, in garrison MWSS-273 is tasked to supplement air station facilities and services provided by Marine Corps Air Station Beaufort, SC.