yeah... what version of SH3?
unless you hit the sweet spot on the destroyer you might as well have been throwing tennis balls at high velocity at that destroyer or perhaps screaming foul language at him about his mother would have been equally as effective.
I ran across a flower corvette escorting a couple of tankers and we had it out... he launched several failed depth charge attacks on me but i eventually figured out that he would pass over me in a DC run and not drop any turds on my head. he was out of DCs!
during his last pass i went to flank speed and surfaced as he passed me overhead and tore him apart with the deck gun. I managed to at least disarm him by blasting his weapons off. but not before he got a couple of shots off and seriously damaged my boat.
The later in the war you attempt such acts of heroism your likely to find yourself turned into a war grave.
didnt this guy have any friends with him?
on a side note...
i do recall sinking a battleship with the deck gun in vanilla SH3.
hit him with my last two torpedos. his friends tried to kill me for a few minutes than ran away... this BB was listing hard to port so i pulled up at near point blank range on his starboard side and started shooting him in the belly with the deck gun... he turned every gun on that ship against me but couldnt aim down enough to hit me! after using up almost every AP round and HE round i had... he slipped under :rotfl:
if i was the captain of that BB i would have gone down with the ship... imagine the rescue operation and the debriefing
debriefer "So captain what happened?"
BB captain "well we got sunk by a u-boat."
debriefer "ahh yes those little buggers are hell with those torpedos."
BB captain "Well we only took 2 torepedos... he finished us off with his deck gun."
debriefer

"im sorry i think i had something in my ear mate.... could you repeat that?"
BB captain