Suggestion for new game.. IL2 like Subsim

[Shrike_UK]

Would love this, an underwater sub hunter killer sim. Just like IL2 but underwater with IL2 like terrain in the sea. Maybe Oleg could set a different team up for this if its a possible money maker?.
Im thinking of early cold war era, with playable American, Russian, and British subs.
I played some Silent Hunter 4, but very disapponted with it, because all you can do is attack ships, which does get rather boring fast as all the engagements are the same, and adversarial involves only sub against ship too. no sub v sub.
I suggested this here, because IL2 was such a success, and i beleive, given the same technologies and staff in house that created IL2, theres a possibility this could be a good suggestion.

Thanks for your time..
Shrike