Thanks guys
I appreciate the game-related aspects, for example that GWX has removed the patrol reward, and that there are no penalties

I sort of meant more roleplay-wise -- what did the Kaelun's do back then?
I presume that if BdU tells us to patrol a certain grid, they really do mean "go there as fast as you can, remain as long as you can, and attack at your discretion", don't they? They must be trying to arrange a good coverage of important grids with the boats they have, and if one boat goes "sod that, I've been here for 24 hours and there's nothing up here! I'm off to [insert name of preferred target]!" that will really screw up BdU's plans!
Also, does anyone have any ideas what 1st Flotilla did in WWII? Being based in Kiel and with Type II boats, I am surprised that they keep ordering me into outer reaches of the North Sea, especially since there is a war going on just "down the road" in Poland!