U.S. Air Force Staff Sgt. Chase Henry, 375th Civil Engineer Squadron engineering journeyman, and Airman 1st Class Tracey Barnes, 375th CES ops management journeyman, are receiving training on M4 specifics at Scott Air Force Base, Illinois, on April 9, 2024. Later this month, 45 hand-selected Airmen from the 375th CES and 375th Force Support Squadron will be participating in Readiness Challenge X in Florida. (U.S. Air Force photo by Senior Airman Stephanie Henry)