Alright, I've updated these to support firing on units with a master-ARCdrones script. It will probably be updated once I add health damage and all that, I just need to convince myself to make this an outright AA turret...
It fires on particles too though, and can be an enemy or ally. Take your pick. :D
mire also shuts it down... it's not entirely invincible.
Note: removing old stuff from older post, going to use that post as a hub for all of these...
Small change to script, damage variable had been removed from damage scripts and is now back.