https://www.haaretz.com/world-news/europe/the-strange-case-of-a-nazi-who-became-a-mossad-hitman-1.5423137
This is actually implausible enough to be true.
Skorzeny is one of those characters, like Nathan Bedford Forrest, who on the one hand you can’t sympathize with, but on the other you have to admire.
I read some years ago an analysis of some famous special operations in the 20th century, written by a SEAL, and Skorzeny’s mission to rescue Mussolini stood out to me for its sheer chutzpah. He crash landed some gliders on a mountaintop, if memory serves, and bulldogged and bullshited his way into getting Mussolini out, despite facing a vastly larger force, and an impossible escape if things went truly bad.
I will add that 3 of the 10 or so missions analyzed were Israeli: Entebbe, Green Island, and the raid on Beirut, where Ehud Barack, a future PM of Israel, dressed as a flirtatious woman to close the distance with some terrorists he then killed, before assassinating some PLO leaders.
Audacity, deception, concentrated violence and speed: these are the qualities which work.