So, I thought for a long time on the scenario... what's done is done
not sure if you see something "in the storm", but I worked as much as possible with the filters, the work is ready in any case.
Story :
U-boat moves to the ger. supply-ship / to refuel ; rearmament (refit). 17 hours later the weather changed dramatically (heavy storm + night), both crews almost complete and is only a couple of minutes to end supply. From the west moving two British cruisers - relying on their radar and searchlights, the british found german ship. Merchant gives his life for a small boat, in the hope that it will not be detected due to its big/large hull, german submarine manages to dive (while the g.ship is sinking) and in the fierce rage revenge for their killed mates.
so - thx for watching!