6th SFS conducts EST tryouts Published Feb. 28, 2022 By Airman 1st Class Joshua Hastings 6th Air Refueling Wing Public Affairs MACDILL AIR FORCE BASE, Fla. -- U.S. Air Force Senior Airman Ethan Vuckovich, 6th Security Forces Squadron commercial search gate member, awaits instruction from cadre during Emergency Services Team (EST) tryouts at MacDill Air Force Base, Florida, Feb. 4, 2022. EST Airmen are highly trained and equipped to handle special threat situations which can involve barricaded suspects, hostages and active shooters. (U.S. Air Force photo by Airman 1st Class Joshua Hastings)