Senior Airman Devin-Christopher Guignard, 628th Security Forces Squadron Combat Arms Training and Maintenance instructor, trains an M-4 rifle course student during a qualifying course June 5, 2018, at Joint Base Charleston, CATM instructors at Joint Base Charleston support all military branches and are responsible for qualifying service members and civilians on various weapons.

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Keywords: 628th, air, america, archive, army, base, catm, defence, force, forces, military, navy, reportage, service, serviceman, servicemen, sfs, soldier, states, united, usa, wing