A very bad learning tool.....

[MaxGunz]

I keep telling that the way to learn flying is to not do it in combat where they have too much else going on.

The unchecked boxes an not just things not learned but learning bad things that take longer to correct.

Still for gunnery practice, a time spent with unlimited ammo and arcade ON gives concentrated lessons per hour on knowing where your shots go. But that can cut you if what you learn is to hang on the trigger and hose ammo.
Same practice with friends, use invulnerable planes but again take care to not pick up lazy or bad habits.

If you go in deliberately knowing the lessons you seek and not turning practice into pure "fun" (turn off thinking and go wheeeee for release as a regular thing) then you can sharpen parts of your game well past what mixed use gives.