I recently restarted playing with a Fleet boat again. I've been pretty single mindedly playing OM for the past year. I use TMO, RSRD and OTC, plus a few minor tweaks like chart symbols. When I'm playing the Kriegsmarine I use OM and OMEGU plus the Das Boot sound mod. From time to time I play around in the Med with WDAD, but it really needs a Brit voice sound mod. Shame that project went west
I've just started playing with the No Sub On Map mod and I'm trying the celestial navigation option using Stellarium. If nothing else it gives you a extra incentive to sink shipping for the position fix