My install uses stock A.I. so even if they can fire 5 shots to my 1, 4 of them will miss badly. I don't make a habit of surface attacks on destroyers, but if i'm outta fish and detected in a damaged sub, i'll take my chances instead of being helpless while they pound my boat with depth charges.
The idea occured to me when i noticed just how many DCs were in the racks on the stern deck of one of the TMO destroyers. I thought if i could land a HE round on the rack it would turn there own weapons against them. We all know how much damage just a couple DCs can do to our boats, imagine 8-12 of em blowing up in the rack!
Granted the damage would not be as great because the compression of the water around the DC would not apply, but at least 1/4 of the force would be directed into the deck and stern section. If it didn't sink the DD it would at least disable it. Look what happened to the Arizona when a single bomb detonated inside the magazine, same idea but on a smaller less enclosed scale.