Senior Airman Matthew Paine, 11th Civil Engineer Squadron firefighter, climbs up the Jones building on Joint Base Andrews, Md., using a single rope system during the final evaluation of the 15-day advance rescue course on Joint Base Andrews, Md., Nov. 3, 2015. The final evaluation was a scenario that eliminated any use of building stairs or elevators, forcing them to test and use a single rope to scale the building and rescue the individual on the roof. (U.S. Air Force photo by Airman 1st Class Philip Bryant/Released)