Are their KI Aces and how to identify them?

[Zacha78]

Oh great, having two of those in a mission explains why I got a little frustrated yesterday. Guess I will just try to do as good as possible and then go on to the next mission

Come to think about it, one more question. Those two guys already appeaed before, though only one at a time with some standard wingmen, what made them much more handeble. This means potentially I could have killed them if they didn´t make the parachute dance. Since Igo kyu was saying the missions were scripted, has anyone tried to find out wether those guys are killable to not show up anymore in later missions? Having already two of them makes me think of running into squads full of russian aces, and it is not an idea I like

This makes me think of good old Wing Commander, back in the 90s, where you encounterd Kilrathi Aces in certain missions, and if you let them get away with their fur intact you would encoutner them again in some of the very last missions of the game