The plan was to attack a enemy Aerodrome at dawn catching all on the ground, A Flight's 2 machines attached 1st then B flight, 3 e/a came in from no where and everything fell apart . I fire at them as they passed then reloaded and attacked the airfield, Rloaded again and did a reversal firing off another drum. I see 1 e/a force landing in a field. I ran for home. Score we landed with 4 a/c out of 6 and claimed 3 e/a.