A 146th Air Support Operations Squadron Tactical Air Control Party Airman, from Will Rogers Air National Guard Base in Oklahoma City, aims a weapon through a doorway while clearing a structure at Southern Nazarene University in Bethany, Okla., during a Special Weapons and Tactics school held by the Oklahoma County Sheriff’s Office, Oct. 26 to Nov. 6, 2015. (U.S. Air National Guard photo by Master Sgt. Andrew M. LaMoreaux)