True enough: the guns are roughly equivalent, and the destroyer is designed to float whereas the u-boat is designed to sink...er, dive. One hole in the pressure hull and it's no longer a submarine at all. Also, I've not heard of too many destroyers being sunk by one hit from an 8.8cm gun.
As for the 20mm, I would have to ask: how many reports are there of merchants being sunk by that weapon, and how many reports are there of extensive damage? Don't forget that even "unarmed" merchants are going to be carrying a few machine guns of their own; and while these may not sink the sub they're surely going to play hell with the u-boat's gun crews.
I'll bet GWX reflects this fairly well.
__________________
“Never do anything you can't take back.”
—Rocky Russo
|