lucky day in campaign... just sunk a 90% of medium sized convoy who had no protection while medium fog support me using the deck gun in Mai43, later also torpedos...
no problems so far all nice and smoth...
...iam after two escaped Middleton Attack Transports now, one of them managed to fool my T5(V) Zaunkönig, he was escaping with high speed, about 13 knots, as the torp came closer, the transport stopped his engines long enough to get out of the search head area and missed him...