USACE sergeant major visits Tyndall, coins Soldiers Published Nov. 19, 2018 By Tech. Sgt. David W. Carbajal 325th Fighter Wing Public Affairs TYNDALL AIR FORCE BASE, Fla. -- Army Command Sgt. Major Bradley J. Houston, U.S. Army Corps of Engineers command sergeant major, visited with 687th Engineer Construction Company Soldiers at Tyndall Air Force Base, Florida, Nov. 16, 2018. Houston thanked the Soldiers for their contribution to Tyndall’s Task Force Phoenix, which was responsible for large-scale clean up and reconstruction after Hurricane Michael ravaged the panhandle of Florida.