Guys, it´s a game, with all it´s limitations. Reality and the game are different things - the AI can´t disengage or avoid engagements, if there are enemy planes near, they fight till the bitter end. The Ai pilots always recognize other planes even if they are under the clouds. In realty it was common to attack with the sun in your back, that´s useless in IL2 ... and so on.
So it´s impossible to engage large enemy formations without a real carnage on both sides.
It´s true that the German campaign is different to the allied - of course, in history it was different to fly and fight as German pilot and i´ve tried to show this in the campaign. And of course not every subcampaign for allies or axis is like the others, i´ve changed the number of planes and the skills for every time frame. Of course it´s easy in tthe game to slaughter some Blenheims and Spit´s with the Fw 190, but in 1941/42 the air war was fought mainly with these planes at the channel, so what should i do?
The biggest problem is the allied campaign, it is absolutly unrealistic if you encounter the same number of german planes as allied pilot in the later stages of war. Doing this in the game, it will result in a milk run for an allied pilot, boring, no challange. So the only way to make it more challanging is to increase the skills of the (outnumbered) german pilots/planes. But that works not always. It also depends on which plane you´re using. The P51 is in IL2 not a very good performer, the P47 is much better. The german planes are very powerfull with their heavy armarment, so it´s sometimes easier to fly these. Also the sniper AI gunners of the bombers are totaly unrealistic ...
That are only some of the many limitations.
Keep in mind that the Westfront campaign is a huge universe of the whole air war in the ETO with more than 2000 missions, together with the large skin pack it is the result of some 4 or 5 months of continious work ... i´m not a developer studio, i´m a one man show, it´s impossible for me to test each subcampaign with every flyable plane, expecting this is truely unrealistic
... and you don´t have to pay for my work.