When they are flying back from Deci, shortly before arrival at home station, Sgt Goebels opens the starboard rear entry door to fall to her death. However, the Transal C-160 is pressurized in flight and it would be impossible for her to be able to open the door. Even if she somehow managed to do it, anything not tied down would have been sucked out of the door and very rapidly with no chance to try to save anyone as shown in that scene.
In an early shot of the base, a Transal C-160 is seen flying from left to right. Instead of the sound of a turbo-prop aircraft, which is the the C-160 is, you hear the sound of a jet engine.