Last campaign I destroyed a Hunt I off the coast of Ireland after it sighted me. I tried to slip away S towards Spain but a hunter group caught me on the surface in the morning. Knew I was in for a whole day of "Depth charges in the water, sir!"
I was crash diving while taking fire from 2 Hunt I destroyers and a Flower class. Immediatly ordered the radioman to fetch my brown pants and then tried changing direction underwater before they could start depth charging. Didn't get far enough away from where I was sighted. The group had me locked in and they were taking turns doing depth charge runs on me(This group was scary efficient for 1941, probably experienced.)
After taking charges and doing damage control for what seemed like an hour, I lost it and ordered my boat to go to periscope depth from 50m. When I got the right depth I noticed they weren't hitting me with sonar anymore. I was too shallow and outside their view. I fired an aft shot at a close Hunt I destroyer. I hit the rear (wheelhouse? if its in the back?) and blew up the ammo supply. Its back broke after secondary explosions.
My luck started to improve and I got excited. Now I was hunting again instead of being hunted.... Except that I mised with all forward tubes while aiming at the 2nd Hunt I destroyer.... And I missed with the 2nd rear tube.... And I missed the Flower class with a sloppy rear shot that loaded 5 mins into the ordeal, after the single warship was sunk near Ireland. After ten minutes of hiding I had a torp in the bow again.... I tried concentrating on the solution better after all the misses, and I got lucky with a magnetic right under keel of the 2nd Hunt after it passed overhead from a depth charge run.
I watched the Flower class with only a forward facing deck gun. Blew my ballast when its wheel house blocked it from firing at me. Crewed my deck gun before suffocation was about to set it and told the watch officer to let loose. I got lucky with a wheelhouse hit followed by lucky hit to the bow that destroyed the deck gun.
That was my most memerable SH3 moment because I thought it was over, was at 20%~ hull integrity, got angry enough to almost surface(surrender) the boat, and still managed to turn the situation around. Got back to base and got a few iron crosses to hand out to my men, totaled six warships sunk on that patrol.