"This unit cannot be flanked, and its attacks are not limited by firing arcs."
Represents 360-degree awareness or multi-directional weapon mounts. For the purposes of combat, every edge of this unit's base is considered its "Front."
Because it has no "Flank" or "Rear," it completely denies enemy units the standard +1 To-Hit bonus for Flanking attacks. It may also fire from any direction without penalty.