They may be controlled remotely from the base/mother ship by kids who have played way too much flight simulators [stretching here]. That would not explain why they always follow the same attack pattern, though. So yeah, inbuilt AI all the way.
The real question of this thread is who [in their sane mind] would want to build/commission a cardboard model of a ship appearing in a videogame? And for what insidious plan are they going to use it? Is there KOTOR: THE MUSICAL in production somewhere? 'Cause almost a half of Paragon Prop's client list (the makers of this prop, apparently) consists of musicals.
again