Marine Network Operators Course students communicate with operators in the field during the course’s final exercise. This was the fourth iteration of the 13-week course. (U.S. Marine Corps photo by Lance Cpl. Kyle McNally/Released) - Marine Network Operators Course students communicate with operators in the field during the course’s final exercise. This was the fourth iteration of the 13-week course. (U.S. Marine Corps photo by Lance Cpl. Kyle McNally/Released)