Doing this mission today. I can confirm the Instructor is parabel flying like a drunken lunatic and also goes above max altitude.
Gonna try again with ignoring him.
Edit: In the mission before this his behavior was better. But even there his altitude changes are insane and he´s not holding the altitudes he tells you.
Sorry for bringing all this up, i really feel like a beta tester in this campaign but it is still fun in the parts that work, so i want to help you repair this as the current situation of the game does not do the campaign justice. In the last patches it felt like they broke more then they fixed.
Proppably even gonna continue with AFTQ after this and hope the missions are not effected so much.