US Air Force (USAF) CHIEF master Sergeant (CMSGT) Larry Cayabyab, Headquarters (HQ), Security Forces (SF), Air Mobility Command (AMC), Scott Air Force Base (AFB), Illinois (IL), holds a stopwatch in his mouth as he evaluates Security Force (SF) teams during the Combat Tactics competition, which is part of the overall USAF AMC sponsored Rodeo 98 airlift competition at McChord AFB, Washington (WA)