Well I have quite many WWII maps (real ones) but they are ofcourse landmaps and are quite detailed too but well.. I know its 1000 times easier to make land maps. But have seen some pretty detailed nautical maps from WWII era but those are only about harbour areas and so on. Anyway the top map looks so much better compared to the SHIII stock map...but well I guess it is unmoddable except all the stuff that can be added on top of it like speed relations to travel charts etc.
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