I've just read the interview given by Cdr. Benford (thank you Andy!). Some nice insights into the game.
No torpedoes... hmmmm. WHAT? But this is a Sub game!! IMHO it doesn't matter at this stage. Why? Because as the title of the game suggests, the subs are in the area to wreak havoc whilst being undetected: Laying mines and sabotaging harbours (with, I assume, Special Forces). The subs aren't "going loud" in this game! I quite like the idea of an enemy ship trundling over a mine whilst my sub is sitting quietly underneath a thermal layer (cue evil laughter!
), or even better, getting away with a snorting move in bad weather (haha, still can't see me, but I know where you are).
Note: I have no idea of the rules yet, this is just supposition on my part.
Perhaps torpedo rules could be worked in as an expansion or discussed as a house rule some time after release.