This just happened a few minutes ago but it happens all the time:
Two planes are de-acking a vbase. I hit and remove the wing of the F4U and quickly reverse direction and hit the F6F on the snout. Right after the hit sprite on the F6, his rounds take me out. I look out the tower and they both went down (of course).
Why shouldn't I get those kills? Same thing happens in dogfights. One plane destroys another but dies before the damaged plane hits the turf and either someone else is awarded a proxy or no kill is recorded at all. Whomever scores the most damage (or crippling damage) should get the kill, dead or alive. Is this the way kills are scored in wartime? Yes this is a game but still...