It would be a good idea if there could be secrete missions for a sea wolf sub to go and rescue submarine crews trapped inside submarines and you have a mini rescue sub that you launch, you have a certain time to get there and rescue them with other enemy ships and subs looking for it that might be responsible for sinking it where as you might have to take them out (before the time is up) or take a chance and try and sneak in to rescue them... the mini sub might have to make several trips also.
