So you know what I'm talking about. Try to damage the enemy plane or at least create a distraction which may give you a small advantage. I'm afraid there's no simulator that would allow such subtleties.
I tried it many years ago in A.C.E. on C-64, when an enemy plane was on my tail firing ceaselessly (you could watch it thanks to a rear-facing camera) and I kept dropping flares out of frustration, to no avail :)