Air Force Master Sgt. Jared Jeppson, the Noncommissioned Officer in Charge of Combat Arms Training and Maintenance for the 442d Security Forces Squadron, helps an Airmen sight their firearm during the Gas Mask course of fire portion, Aug. 11, 2020, on Whiteman Air Force Base, Mo. To be able to qualify, an Airman has to score a minimum of 4 hits while wearing a gas mask. (U.S. Air Force Photo by Senior Airman Alex T. Chase)