Turrets are already overpower…. (Principally the Schorcher AT) with Technician ability of controlling it for only 1 AP multiple times in same turn!
Returning Fire ability has no sense in a fixed weapon (it is not a soldier) and making it even more overpower. It should be removed, diminish the fire power of Schorcher AT, and Techs only can use Manual Control once per turn.
Canny Official Feedback Tool topic:
https://feedback.phoenixpoint.info/feedback/p/remove-return-fire-ability-of-turrets