Staff Sgt. Cinthia Swartzlander, 30th Civil Engineering Squadron, assists a simulated victim during an active shooter exercise Aug. 7, 2019, at Vandenberg Air Force Base, Calif. During the exercise, 30th SFS members swept the building, alleviated the threat, and provided first-aid to simulated victims. (U.S. Air Force photo by Staff Sgt. Brittany E. N. Murphy)