For me, the biggest flaw in SHV is the complete lack of the Kreigsmarine coordinate system ((AN, AM, BF, etc) aka the grid). The fact that it was not included in the release is amazing. I am pretty sure that with a multitude of breakthroughs in the modding community of late, this is something that can be tackled and added. I just wish I knew how to do it.
Like others have said, the u-boats main task was to sink merchants. I would love to see a campaign like we had in SH3 ... go to this grid, search and sink merchants.
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