You should've seen my reaction with the coastal guns. It was Christmas Eve night. Folks either asleep or trying to figure out which end of the beer bottle is the drinking end. I had just installed a Bose speaker system on the PC. Great sounds and the diesel engine chugging along nicely. Then WHAMMO! the beer went one way and me the other. A big hole in my hull. Some crew members injured. Crash Dive!
Chasing fast moving warships is out of the question in an S-18 though. It's near impossible to get near them.
The sub dives and surfaces faster than the newer boats although they can be very noisy.