* PTO US Boats.
* Watch officer automatically goes back up top when I surface. (no more babysitting.)
* Crew rotations. (see above.)
* Binocs automatically capture the screen when selected. (a little thing but handy.)
* Crew on target ships. (why do they wear suits and ties BTW? I've seen alot of fishermen in my day, none ever wore a suit and tie.
)
* Moonlit nights are a thing of beauty now.
* Changing weather.
* Real fog. (you have to get real close to id targets now.)
* Variety of missions.