Actually, I have seen conflicting info on that, and his injuries, ala Kerry. What is almost certain is he broke down mentally in the end, with psychosomatic blindness and psych issues getting him institutionalized. His shrink was one of the first to disappear, once he got power, and all the records went bye bye.
There is no denying his two Iron Crosses and wounds, he was a brave soldier, we don’t have to pretend otherwise.