Thanks for the feed back. Incredibly helpful as always.
You are right, there are a LOT of things to keep track of in this game. Visualizing sensor ranges and probabilities has been a constant challenge throughout the development process. The newest version of this game has a few tweaks that should help a bit. Enemy weapons cards now show up 100% of the time, so you can get a better sense of enemy capabilities. There is now also a box that gives you the detection probability for each hex. Just click on the hex, and you will see the probability of detection for each unit.
Hopefully, these changes reduce the learning curve a bit. At the end of the day, modern naval combat is complicated.
Thanks for playing.