As for the bug- it's simular to not seeing the oil streaming across an opponent's canopy when you know he's got an oil hit. Just not modeled I guess. But the black smoke tells the tail on that.
Would be nice to have the opprotunity to have pitch black, no icon, radar only intercepts. Is that even possible?
Heard several stories about someone lighting a cigarette or hitting the wrong switch and giving themselves away. Would be a trip to have to kill your engine to get a fix on a flight of bombers.
Sorry for the hijack. My mind often wanders.