Sgt. Nathan Stivers, 2nd Combined Arms Battalion, 137th Infantry Regiment from Kansas, works on the "Killer" vehicle Dec. 11, at the Maneuver Fires Integrated Experiment on Fort Sill. The Killer's ability is to fight in the cyberspace battlefield, disrupting the communication between vehicle and operator. (U.S. Army Photo by Monica K. Guthrie (IMCOM))