U.S. Marines with 6th Naval Gunfire Liaison Company, Force Headquarters Group, Marine Forces Reserve, simulate plotting and calling in close air support at the Simulated Combat Center on Camp Shelby in Hattiesburg, Mississippi, Dec. 2, 2025. Tactical air-control party (TACP) exercises prepare prospective joint terminal attack controllers and joint fires observers for formal schools. (U.S. Marine Corps photo by Lance Cpl. Payton Goodrich)