Mk 108 is only LW barrel armament which can take out tanks in AH. I agree it just doesn't feel right, since it is a HE round, not an anti tank round. MG 151/20 is useless.
As for HE shell sponge P 51, note that so many hits on wings and stabs did not cause any missing ailerons, flaps or elevators. Nothing !
Only 4 30 mm hits knocked out whole wing. It should have gone with 1 ping. As if our MK 108 fires AP rounds or duds are modeled.
AFAIK, MK 108 did not use AP rounds. They were all HE, if I am correct. Shell weight was some 300 g. Let's say 2/3 of weight is HE component (although it is probably even more in German rounds). 10 30 mm shells is now 2 kg of high explosives (probably even more), detonating on contact with the plane. Something very wrong here.
Another thing :
We all know buffs have been hardened for playability reasons. The explanation was how many times single buff went over Germany, how many times even 4 buffs went in mission etc. Now, I can agree with this. But when these same hardened buffs DO fly in formation ? 10+ planes ?
I am ready to say that these same super-tough buffs ruined one of the scenarios. We took gondola armed 109s, but buffs just did not go down. And they were flying in close formation. Of course, their .50 cals shredded 109s no problem.
Now, please model guns and armor how they really were. No playability tweaks, please.
Leave cannon Hog too, if its guns are correctly modeled. No playability tweaks. IMO, cannon Hog thanks its long range lethality to icons, not to Hispanos.