Sgt. 1st Class Joseph L. Barcus, senior fire direction control noncommissioned officer-in-charge, headquarters headquarters battery 3rd Battalion, 321st Field Artillery Regiment, 18th Fires Brigade, 82nd Airborne Division, works on the Army field artillery tactical data system (AFATDS) system during joint training at 18th Fires Brigade headquarters Sept. 3-5. The training combined systems from the Army and Air Force.