 The Mobile Gun System Commander's Course (MGSCC) is designed to train officers and non-commissioned officers to be technically and tactically proficient on the Stryker Mobile Gun System (MGS).The MGS Commander’s Course is designed to produce leaders that are fully qualified as an MGS Commander, with the technical and tactical knowledge to maintain and employ the MGS in a combat environment.The Master Gunner Common Core (MGCC) train non-commissioned officers on advanced universal gunnery methodologies, gunnery training with a focus on vehicle mounted machine gun weapons systems, and the planning and implementation of gunnery training programs.