The idea about an Full 3D sub is nice, I would love to see the Diesel Engines Work
and that about crewmembers walking through the Sub is also something I would like to see. like your in ur command room and an Repair crew comes to you and tell ''The big ass hole in our nose has been fixed sir''
Commander ''With what?''
Crew: With Bernhard Sir! he put on an Raincoat and uses an Straw to breath and is lying on the Hole sir, Just dont dive too deep''
and to Add something
when you destroyed an Ship I wanna hear the Crew Cheer!
comon sinking an big ship must trigger some Happyness