AI in the TA that fly around as target drones, matched to some air starts for whatever specific ACM. e.g. Proper high front quarter pass at bombers, or practicing a bounce on a fighter that would do a specific evasive, which teaches the student both how to counter that evasive, and what that evasive is supposed to look like from the bouncer's POV, so that said student can do it right when they're the bouncee.
This is perfect for bots.. They do the dirty work repeatedly and flawlessly.