Thank you very much for downloading and using this mod, and for giving us some good feedback!
The sensor fix, both for torpedos and subs/ships, is a FAIR amount of work. Amizaur's idea is a solid way to fix the problem from a gameplay standpoint.
In general, I think we should look at tuning all passive sound levels down in addition to adjusting them relatively, to make all detections a bit harder, perhaps by a universal 5 points or so. :hmm:
Cheers