Voice of the infantry: Gunner serves as conduit between MCSC, FMF - Gunnery Sgt. David Tomlinson before participating in a clearing operation in Haditha Dam, Iraq, in 2006. In January 2019, Tomlinson became Marine Corps Systems Command’s first infantry weapons officer, or gunner, enabling him to relay equipment feedback from Fleet Marines to MCSC program offices. (Courtesy photo)