The only good use of the deck gun is as follows:
1. For sinking a ship if your last torp failed to sink it. Even that's subjective.
2. For attracting attention. Used only for the suicidal or insane at heart.
3. If you're not using a realisim mod. Then they're better than torps.
4. For frightening off burglers when volume turned up loud.
I really think it was used by skippers as a last ditch weapon when the torps run out. It took a lot of ammo just to sink a large Sampan.
