Let Rifles deal damage to aircraft. People are complaining about fighter autocannons dealing too much damage to infantry, but I think the worst possible way of dealing with it would be to nerf the damage itself, the game needs some depth and as it is, only Melee combat was a consistent way of killing players so far, cannons and Movecraft are simply not as opressive against infantry. It is also true that it is simply unfair to not let the Infantry have a way of dealing with aircraft, while still expecting aircraft to deal reasonable damage to infantry, so I suggest keeping the high infantry damage on fighters, while also allowing rifles to deal damage to aircraft to keep balance in check. And as for historical accuracy: https://www.quora.com/Could-WW1-aircraft-be-shot-down-by-rifles-on-the-ground
Yes, the aircraft were shot down with infantry rifles in the past, and not only machine guns but also rifles.