Army Reserve Pfc. Dylan Sims, a supply specialist and native of Arnold, Missouri assigned to the 375th Chemical Company, 472nd Chemical Battalion, 209th Regional Support Group, 76th Operational Response Command listens to last minute guidance from his vehicle commander before heading downrange to engage targets and qualify with a mounted M2 .50 caliber machine gun at Fort Riley, Kansas, April 3, as part of Operation Gauntlet. More than 450 Army Reserve Soldiers from around the country are participating in the three-week gunnery exercise to hone crucial gunnery skills and increase battlefield lethality. (Official U.S. Army Reserve photo by Sgt. 1st Class Brent C. Powell)