Now I am very aware that enemy nations regularly use Falcons and what not, even if Sukhois are the staple bad guy plane. But since it is very clear that every nations has almost any plane available, especially since the protagonist can use any plane (technically the Berkut is even one of Moebius canon planes), I kinda noticed that I have never seen an ally squadron use Mig or SU planes. And no changing your squads plane or enemies turning into allies in the later half does not count. Is there any instance where we actually see Usea or someone else use them? I guess Mimic squadron sorta counts, but they are still enemies.
Actually I just remembered the penal unit does I guess, but I really don't know anyone outside of that. And even then it's basically the plane for the criminals.
It's just kinda funny to imagine everyone being confused by the one guy that flies around in a Sukhoi while everyone else uses the F-15, like in Fleet Destruction. Like "Hey, why is that one guy always using the Su-37? Nobody in the army does." "Why do we even produce those actually?"