tough crowd!
my first kill:
manual TDC, but map updates on so I could check out how things work.
It works similar to SH3, but more limited. You can only change torp speed, depth, magnetic/contact, single tube/salvo.
Your XO will give you an estimated solution, but it is a gross approximation and needs to be thoroughly reworked.
You can not manually set gyro angles. They are determined by where you are aiming your scope. A yellow line shows up on the map showing the torpedo path w. time to target range. This allows to aim the torp based on target speed/course.
One nice thing is that you can keep the target "locked" and still rotate the scope.
I have no problem with the way it is designed, it fits in with the design that you are the skipper and not some crewman fiddling with dials.