ok, so here it is, done out of pure curiosity:
1. my soldier has gone berserk
2. I spammed the options tab, and clicked save while he was in this mode
3. I load the game, and the guy is all stuck with his gun pointed in the ether.
If I try to move him, he the game will hang, and will be have to killed with process manager.
I attach the save game.
EDIT:
if anyone gets to this, I have found a workaround: order the guy to shot in front of him. he will make a shot, take his weapon to 'stand by', and will be mobile again, and wont hang the game.
