Tactician is cleverly worded so that the Falcon only gets the bonus in the front 90 degrees, which is a relief. The firespray, on the other hand, counts both front and rear arcs. Very nice. I think it's cool that the firespray's fire arc get at least some tiny advantage over a 360 degree turret.
Are you sure?... Thought firespray has a dotted rear arc indicating similar rules as yt arc.
Yes, it's a strange ruling but the auxiliary arc on the Firespray counts as a standard firing arc, but the 360 on the Falcon does not.