Thanks! No, I play with my modlist as described in the first page. I just start again from bunker, this time I chose the Scapa Flow mission. I change to leave port in 3 days and from Wilhelmshaven, I'm sick to crash my sub with TC 256 in the Kiel canal...
I think that considering your suggestions, everything should go fine then. Also I still have plenty of time, it's 28.09.1939 when leaving bunker, the mission expires on 15.10.1939.