Durability of aircraft to MG (< 8mm) guns

[Chivas]

I doubt very much the developers will nerf the cannons and uber the smaller calibers. There is a huge difference in the damage model of IL-2 and COD. The days of shot up fighters staying and being effective in a fight are over. With the new damage model every system on the aircraft can be damaged or destroyed. Pilots will be bailing out or trying to find a way out of the fight as quickly as possible, because the aircraft will no longer be effective.