Dunno if you guys have seen that long interview with the dev team yet but i swear in one of the shots i saw a torpedo hit the side of a ship at an angle of approx 5 -10 degrees and the torpedo detonated. I wasn't sure if it was a magnetic or impact but from GWX mod (and yes i know they were german torpedoes) if i tried using impact pistols at any angle below 30 degrees i could be sure that they'd just bounce.
I worried that the torpedoes might have too high a sensitivity.
But hey! if it's a magnetic goin under the ship, then mayb there's no need for worry