Lieutenant Colonel Mark A. Koval assumed command of Marine Light Attack Helicopter Training Squadron 303 (HMLAT-303) on 21 May 2021.Lieutenant Colonel Koval enlisted in the Marine Corps Reserve in May 2000. He graduated recruit training from Marine Corps Recruit Depot San Diego as the Platoon Honorman and was meritoriously promoted to Lance
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Sergeant Major Gregg enlisted in the United States Marine Corps in June 1998. He attended recruit training at Parris Island, South Carolina with follow on training at Infantry Training Battalion, School Of Infantry East where he obtained the MOS of 0311, Basic Rifleman. Follow-on training was conducted at Marine Security Force School, Chesapeake,