In all reality, if you search the Uboat forum and us OM as you base mod, add the other mods created(like German voice mods) using JSGME. The player can have a great mod package! I did it. I used OM, dropped in Real Enviro 5.0 found in the Fleetboat mod forum. I dropped in the voice mod for German voices and ta-da nice German Uboat campaign with some trimmings
Only problem, I went to shoot a torpedo and completely forgot how the Germans did it.
