U.S. Air Force Special Tactics operators march down East Houston Street in memory of Staff Sgt. Dylan Elchin. The route begins at Joint Base San Antonio-Lackland and ends at Hurlburt Field in Northwest Florida.U.S. Air Force Special Tactics operators march in memory of Staff Sgt. Dylan Elchin from Joint Base San Antonio-Lackland to to Hurlburt Field in Northwest Florida. Photos taken on the morning of Feb. 22, 2019.