Was flying the the sitting ducks mission and my cannon sounded like an empty pop can with a few rocks in it..very hollow and stuttery with no smoke. (Like it was only sounding every 10th round or so). From external view it worked fine, including smoke. This was at low altitude, less then 500' I'd say. Did not have this problem at high altitudes. It almost seems like it hesitate to fire when low to the ground. Min alt is set to zero (default).
Anyone ?