[P/O W. 'Moggy' Cattermole]

Yup, modding the damage models on aircraft is forbidden. BUt improving the ai to make them less inclined to hit the silk at the earliest moment, or make them more adept at returning fire or manoevering to avoid fire is something of a way around the problem. Or maybe you're using an aircraft that's simply very powerful. With 4 30mm cannon, the Me262 doesn't struggle to shoot bombers down if the pilot's a good shot; the Me410 can, if you pick the correct load out, carry a ridiculous amount of guns and cannon and is good for knocking stuff out of the sky too.