U.S. Army Staff Sgt. Michael Miller, 415th Infantry Regiment, 415th Chemical Brigade, chemical specialist, explains the innovation approach to the new M4 weapons qualification training on Jan. 26, 2022, at Joint Base McGuire-Dix-Lakehurst, N.J. At Army Support Activity Dix, Soldiers assumed multiple firing positions in a single session to simulate real-world conflicts while maintaining accuracy. More