Last few times I observed in a fighter (just to watch how he did things) enemy aircraft actually disappeared behind the gunsight reflector glass. Also, no tracers or bullets because it was technically from another plane (you don't see those) and no gun firing sounds or flashes. You just watch as the plane in front of you loses a wing for no reason.
Definitely would like to see some improvement here, as long as it doesn't require too much recoding.