Yes your patrol area icon will have been moved, and most likely to the Dover area to the south. Also if you have the 50,000 tons required check by clicking on the round icon with the iron cross in it and the box that opens up will have a bar at the bottom, and this bar fills in white as the tonnage racks up. If it is full, then your done but wait till you recieve the order to "cease all operations and return to base" before going back to port. You will recieve this, but not right away when required tonnage is reached and may take a few hours or so.
Till then just do what the radio message says and reposition.
I got repositioned twice on this mission, the first time it was to the Dover area, then again back up to near the area I was in to begin with. It was then that I run into a convoy that landed me the remainder of tonnage I needed,..........heh and then some. I wound up with 99,380 tons by the time I got sent back. But I also had to go and resupply before racking up that much. And I resupplied at Heligoland just north of Wilhemshaven, It's a tiny little island and is only for resupply. It asves you fom going all the way into Wilhemshaven.
Also by the time you get ordered back to port, it will have changed to Wilhemshaven and you'll know this by the fact that the diamond shaped icon will then appear at that port.
If you have sunk the 50,000 and it counted the round icon's info will look like this. and the iron cross in the box will have turned white as well as the first two crosses in the Total Germany box in the upper left corner of the map.
