315th TRS opens Heritage Hall Published Jan. 10, 2017 By Staff Sgt. Laura R. McFarlane 17th Training Wing Public Affairs GOODFELLOW AIR FORCE BASE, Texas -- The 315th Training Squadron held a ribbon cutting ceremony for the opening of Heritage Hall in Di Tommaso Hall Jan. 6. Four previous unit commanders joined Lt. Col. Kenneth Stremmel, 315th TRS Commander, and unit members for the ceremony.