U.S. Marine Corps Lance Cpl. Josh I. Lock, left, a team leader with Alpha Company, 1st Battalion, 2nd Marine Regiment, 2nd Marine Division, practices sighting in with an expended M136E1 AT4-CS confined space light anti-armor weapon at the Weapons Training Battalion, Stone Bay Rifle Range, Camp Lejeune, N.C., Feb. 11, 2015. 1/2 conducted a Tactical Small Unit Leaders Course in addition to their annual marksmanship training; allowing WTBN to test a new training method to enhance the efficiency of unit’s pre-deployment and sustainment training programs.