I served on the USS Salmon SS-573 from 63 to 65 ... as a young sonar tech.
We sank the entire first fleet including one oiler, to destroyer's and the USS Hornet with ASW gear protected by a fast attack.
We did all of this in a war game of course, but we were playing a Russian diesel boat and we did quite well.
The 50's and 60's were an exciting part of submarine history even though no shots were fired.
Good luck on your development of a cold war add on/mod etc ...
Don't forget to have scenerio's where we try to follow boats out of Pearl or Kamchakta (that's southern for Russian).
__________________
|