[peterloo]

I think that there should be limited diesel and torpedo supply during last few monthes of the war

I don't know whether it is historically accurate, but I suggest that in the last few monthes of the war, oil supply < oil demand, as well as torpedo supply (since batteries are destroyed in Allied bombards) So it may not be appropriate for a Type IXD boat to get 100% diesel when it is ordered to patrol Western Approaches