The 8th Theater Sustainment Command (TSC) conducted an active-shooter exercise in September 2017 at the command’s headquarters on Fort Shafter, Hawaii. First responder communications are supported by LMRs, now supplied through an innovative arrangement involving two contractors and two enterprise LMR locations. Each contractor supplies the primary core for one location and the secondary core for the other location. (U.S. Army photo by Staff Sgt. Michael Behlin, 8th TSC)