Open the .dat and .zon file with s3d . In dat file click "toggle zones editor" and check if the spheres and boxes are in the right position.
I corrected: afb_beaufighter, afb_focke_wulf_fw_190a5 and afb_g50c8freccia.
If you want to try, start from the last plane in "air" folder and let me know the planes you modify, so we do not the same work.
It is a long and boring work but i think it is necesary becouse ai aa_guns, with wrong values, isnt able to hit the target.