HAR4NT: Because it was difficult to find a stunt double for Arnold, he did many of his own stunts, including jumping off the plane's landing gear for real on takeoff at over 70mph! During the making of the movie, he was injured a few times, but it never involved more than a few days to recuperate.
Behind The Scenes of Commando Movie (1985)https://www.fast-rewind.com/making_commando.htm