U.S. Marine Corps scout sniper instructors train Marines in the Basic Scout Sniper Instructor Course at Marine Corps Base Quantico, Virginia, 22-24 April 2019. The Basic Scout Sniper Course provides Marines and other servicemembers with scout sniper training in preparation for duty as a scout sniper within an infantry battalion, reconnaissance unit and Marine Special Operations unit. (U.S. Army video by Specialist Natalie Gilormini-Lucret)