Hit precentage goes down, when u fire at objects, howeaver it is countered by points for objects destroyed, so it is kinda a catch 22. A perfect Attack sortie for for rank would be (in a P 38) one hanger (two 2k bombs and 5 rockets), two field objects, ammo, fuell, ect ( 2 rockets each), and then as may kills as you can get, and a landing. Only using your guns aganst enemy targets. While the 110 would only be able to kill a hanger with it's ordance, the abality to do this and pull out at a reasionable height would greatly enhance it's surviabality, and thus it's attractivenns for this type of sortie.