Real navigation is a mod for NewUIs, wich makes you navigate on a map without any information...
-You don't see your sub
-you don't see any boats
-you don't see any contact line
-you can't draw automatic stock course line
-you have to draw your bearing and use compass tool
-you can ask navigator for your current position if good weather
-you can have your current position drawn on map if good weather
-you can have current position automaticaly every 2 hours (Trevally script)
-you have to calculate where you could be, and beware of coast!
-you have to determine if boat is ennemy or friendly
-you have to determine ennemy trajectory using hydro and clock
-you have to determine ennemy speed via hydrophone and clock
-you have to follow ennemy at distance when in sight
-you have to intercept ennemy best as possible!
Really awesome experience!...but need some time to play it...