Inside a dark shooting range at Fort Belvoir, Virginia, Army Master Sgt. Lashon Wilson stands behind a barrier, kitted out with body armor and an M4. In front of the M4’s optics is an advanced thermal sight, and affixed to his kevlar is a new set of night vision goggles. As Wilson looks behind him, he keeps his rifle pointed downrange. On an overhead flat screen, there’s a video feed showing Wilson’s field of view, and hovering in the center is a circular reticle showing a silhouette target — on the opposite side of the room.