You fly mostly B25, correct? i will give a look at B25, memorize gauges, and when i have some time i will do some flying. B25 does not have manual mixture: is it just in the game, or real B25´s had auto-mix?
I red that the fact that you cannot ocupy co-pilots seats in most IL2 planes is a problem to some positions on the formation flight. Now that they have reworked 3D interiors, i will ask team Daidalos if it will be dificult to get the co-pilot position available. Suggest that you ask them also

two asking its better than one!