I'm reading a book about Monte Cassino, titled "Monte Cassino" oddly enough, and there is a veteran's account from the January of '44 related to the subject. In the January of 44, while attacking a hill his unit was held up as they spotted a manned German MG positions. As they approached, the guns didn't open up as the guy behind the gun was frozen in his position behind the gun.
They didn't go into much detail as to whether the guy literally froze to death or was shot and froze, but that may make for an interesting addition to a dio.
Fascinating book by the way.