A combined arms live fire exercise, better known as a CALFEX, is a grueling, vigorous, multi-day event that prepares Soldiers for large-scale combat operations. The “Hound Battalion,” 3rd Battalion, 67th Armor Regiment, 2nd Armored Brigade Combat Team, 3rd Infantry Division, the Army’s most modern armored battalion, conducted a company-level certification of its tank and Bradley companies during a CALFEX on Sept. 20-23 on Fort Stewart. Soldiers who participated in the CALFEX had to react quickly to mission changes into the scenario throughout the course of the week and still get the mission done.