OK,thanks for that.Guess I will need a few more kills under my belt and do it the long (proper) way.Realistically though,if the commander was adept at his role he could transfer to any UBoat he wished,so long as it was seaworthy and availalbe (I may be wrong here too).I have 3 kills already from only 2 patrols,and am preparing for a 4th and final kill (hopefully) of the patrol.