Avoid wasting your time with rockets such as the Choker or Flash. Load up on Flak Rockets. You will be able to destroy oncoming enemy squadron before they enter firing range.
-Alter your wingman's weapons loadout before every mission. While you cannot issue orders to them during combat, you can at least make sure they have the firepower necessary to defend themselves and launch effective attacks against large enemy targets when needed.
-Heavier caliber weapons do more damage, but require better marksmanship and fire more slowly. Combine light-caliber machine guns with heavy cannon for the perfect blend of gunnery accuracy.