[Romanator21]

Actually, There are multiple armaments installed on a Mk.I and Mk.V

In Il-2 we have a Mk.Vb with 2 Hispano cannons and 4 machine guns. Letters a,b, and c denote wing types. So, a Mk.Va would have 8 machine guns just like a Mk.I, and a Mk.Vc would have 4 Hispano cannons. I believe letters d and e refer to no armament (for recon), and "universal" type, respectively. That's why our Mk.IXe has .303 or .50 cals in the wings, and has 2 Hispanos with 2 empty nubs (which can accept 2 more Hispanos if the machine guns are removed).

Some Spitfire Mk.I did have 2 Hispanos like our Mk.Vb, but these had teething problems with reliability.

Details aside, even with all the changes you mentioned, I doubt Luthier would have to "relearn" how to fly. But I'll reserve judgement until we can make a direct comparison to the Hurricane, or Stuka in each game.