Let's have Vader and 5 Ties in a wing with the Agent of the Empire Command uprade.
Scenario 1: Vader does a 3 bank, then does Focus and Target Locks. Then all the TIE fighters slot into the wing tool and all is happy. Easy!
Scenario 2: Vader does a 3 bank, then hits Afterburners, then does a barrel roll. What happens? Do the TIE fighters also get to Afterburner?
Scenario 3: Vader does Supernatural Reflexes Barrel Roll and then does a 3 Tallon Roll (not on the TIE dial), and then does Afterburners. What happens to the TIE fighters?