Allied Air Force vs. Submarine

[Navigator777]

Hello everyone!
My screen is 1366/768 and when I was looking for how to make a full screen from a window, I tried all the extenders I found by trial and error. And I liked wac NYGM v 2017 - 1366/768 extender for my screen more in terms of contrast, visuals and overall picture. I didn't even realize that NYGM is also a megamod, the picture turned out cool and unusual and oh well)

. And in the end I got a build of the game
SH3 + GWX + wac NYGM v2017 1366/768

I just now quickly read about this megamod. And when it is compared with other megamods, it has the most evil escorts and the most evil aviation compared to others.
As the game progressed, a purely historical question arose about the penetrating power of machine gun fire of allied aviation. If in the basic SH3 the main damage to the submarine's hull strength is caused by bombs, then with the GWX mod, aircraft machine guns cause almost the same damage. One attack by an aircraft firing machine guns and up to a quarter of the hull strength is gone. Moreover, in the Academy of the mod, when there is an attack by many aircraft and it is impossible to dodge, the submarine can withstand a direct hit from an aerial bomb and lose the same quarter of its strength. If the Braunig 7.7 and 12.7 machine guns, which the Allied aircraft were armed with, had such high efficiency, then no bombs are needed. And the Catalina and Sunderland flying boats with their large number of machine guns are a terrible flying fortress even without bombs and capable of sinking a submarine with pure machine gun fire. Especially considering that with my installed mods, they and other aircraft are much more difficult to shoot down.
I looked for historical facts about this machine gun effectiveness against a submarine, but I did not find anything about submarines in fact.

In thematic chats on history, I was answered:
The strong hull could withstand fire from machine guns and small-caliber guns of ships and aircraft. In post-war tests of captured boats, it turned out that 20-mm and 23-mm shells and 37-mm fragmentation-incendiary shells only caused damage to the light hull. To penetrate the strong hull, 37-mm armor-piercing shells or 57-mm tank guns were required, which were installed on one of the modifications of the British multi-role fighter-bomber "Mosquito". The first "Mosquito", equipped with a 57-mm gun, took to the air on June 8, 1943 and received the index FB.XVIII "Tsetse". The African fly was chosen as the name of the new modification of the fighter-bomber because of the strong piercing proboscis protruding from the front of the head. Already in November 1943, the new "Mosquito" first tried its hand at U-123 of Oberleutnant zur See Horst von Schroeter, returning to base in the Bay of Biscay. The fired 57-mm shell made a decent hole in the submarine's strong hull measuring 18 x 6.5 cm and deprived it of the ability to dive. One of the submariners died, two more crew members were wounded. However, the submarine managed to escape death and reached the base.

Before that, when I played the basic SH3, machine gun fire only caused damage to the conning tower (up to the failure of the anti-aircraft guns) and the deck flooring. The strong hull is penetrated either by dropped bombs or fired rockets. In principle, it corresponds to historical reality. However, I have not encountered a "Tsetse" with a 57-mm gun in the game.
. And when I started playing with mods, even a reconnaissance plane with two 7.7 machine guns, one in the front and one in the back, suffers damage to the hull strength. And flying boats with their 5 or 8 machine guns and Hurricane fighters with four 20 mm cannons are some kind of scary monsters.

Other players playing with the GWX mod assembly answer that their hull strength is at a realistic level. That is, machine guns are not scary to them. Damage only from bombs and collisions with other objects. As it was in reality.

Apparently, this effect of machine gun fire, which is terrible for the strong hull of a submarine, is given by NYGM.
Maybe there is some way to return aircraft fire from cannons and machine guns to historical reality, when at least it will not destroy the strong hull of a submarine and be able to sink it even without bombs?
If you do not remove the NYGM mod itself, which, according to reviews, has the most evil escorts and aircraft. But this makes the game more interesting.