Air Force Service Cap Devices - Officer and Enlisted Class:Officer Vehicle Qualification Bars include: Operator

Vehicle Qualification Bars include: Operator S Bar (Special mechanical equipment)

According to Army regulations

ID badges are worn centered on the pocket of the coat or shirt

Marine Gunners assists their force commanders in battle tracking

Originally called the "Aircraft Crewman Badge

Air Force Service Cap Devices - Officer and Enlisted Class:Officer Vehicle Qualification Bars include: OperatorUnited States Air Force Service Cap Device Criteria: For United States Air Force service caps, a large, silver eagle device is worn. For enlisted men, a smaller version of the officer's insignia is worn enclosed in a ring. The cap device is similar to that worn by soldiers as the U. S. Air Force was once part of the U. S. Army.