your ACMs and flying is fine. your gunnery is horrible.
work on your gunnery.
on 205 the distance was fine when you fired at it the 1st time. you just need to lead a lil more. that shot you needed to lead about 50 feet in front of him.
on the shot on the La if you pay attention you will notice, that you shot his tail off. when you had the line up for a perfect shot, you missed again because not leading enuff.
the last one you got, when he was 400 yds out , you needed to double the lead or better yet, waited til you were 200 yds out with that same lead you had when you fired at 400 yds.
you seem to be over correcting on some of the shots you made.
nose bouncing all over. need to ease up on the corrections, nice and gentle. relax and breathe.
just to help you visualize, imagine a water hose. and a dog you trying to hit with a solid stream of water, when the dog is running in circles around you. you point the hose in front of him and keep it there to get the stream of water to hit the dog constantly. on the ground it is a 2D evironment. in the air against planes it is 3D.
in the air you need to roll your plane to the targets flight path to get bullets lined up for steady stream of hits. aim at the planes flight path to get your bullets to meet his plane. time it right, nothing he can do to avoid a shootdown. sometimes not even stirring will save him.
set your convergence in closer, get closer to the target, get the right amount of lead in his flight path, and fire one second or half a second bursts.
turn your tracers off and quit spraying.
this is not, by far, all that is involved with gunnery.
but I hope some of this helps you some.