The game (AI) might be a bit harder somehow.

[PL_Harpoon]

Originally Posted by Shadow

Really? Can't find it on the changelog, but that'd be great.

Here's quote from the steam forums

Major changes are:
Torpedo tubes jamming is reinstated but a little more generous, tubes can now jam at 20+ knots.
Found the last (we hope) of the AI submarine diving bugs, so now there should be no more diving into the sea floor or past crush depth by Soviet subs.
Torpedo homing logic now uses "lag" rather than "lead" logic so that targets being homed on cannot be outside the sensor cone.