Gunnery sergeants and master sergeants take part in a guided discussion during the Master Sergeant – Gunnery Sergeant Committed and Engaged Leadership Symposium aboard Marine Corps Air Station Miramar, Calif., March 19 – 21. For three days they held discussions with topics ranging from remembering the Staff NCO Creed and ethical leadership to leadership panels and personal and unit missions. - Gunnery sergeants and master sergeants take part in a guided discussion during the Master Sergeant – Gunnery Sergeant Committed and Engaged Leadership Symposium aboard Marine Corps Air Station Miramar, Calif., March 19 – 21. For three days they held discussions with topics ranging from remembering the Staff NCO Creed and ethical leadership to leadership panels and personal and unit missions.