Today I played an Epic game with a Raider on the table. One player tried to claim that the Raider's primary weapon could be fired out of any of its three firing arcs (the forward-facing arc on the fore section and the side-facing arcs on the aft section). We ended up agreeing that it's probably intended to only fire the primary from the fore section, because only the fore section has an attack value on its ship card. However, we couldn't find a definitive clear statement in the rulebook to support either interpretation.
Can anyone clarify this for us? What arc(s) can the Raider's primary weapon fire out of?