Nerroth said:
I took a look at how the Escort trait is presented in the preview file:
Escort: This ship is designed with advanced systems and focussed gatling lasers that are designed to protect other ships in the fleet. Any gatling lasers that have a friendly ship within 4 inches and within their arc of fire may be used to protect that ship as if they were actually mounted upon it. They may be used to defend against fighters, grapple lines and boarders as normal but may still only be used once per turn for each type of defence.
So it seems that the "off-side" lasers won't be of any benefit, since it's the position of the friendly ship (relative to the escort's facing gatling arc) which counts, not which direction the incoming targets are coming from.
If you interpret "as if they were actually mounted upon it" literally, then look at what happens when you have two ships flying parallel within 4" range, both of them Escorts.
If they're on the same course, and a volley comes in through the (say) port arc aimed at the more distant ship, then only the port arc gats on the target ship can fire. The intervening ship can't fire its own port gats (because an attack isn't technically being made against it through that arc) and its starboard gats (which "cover" the target) act like they were mounted on the target ship - meaning they can only shoot at things coming in through the starboard arc. That's pretty silly, and probably not RAI.
Even more ridiculous, if the two ships are on reciprocal course (parallel, facings 180 degrees apart), a volley at the more distant ship's port arc triggers both ship's port gats - the target's because they bear already, and the escort's because it "covers" with its own port side, which are then treated as being mounted on the target, and therefore being in arc. That's a clear case of off-side gats firing, and it happens because of the wording you're citing.
If you can logically explain why off-side gats should work in the second case but not the first, you're a better man than I.
Not that I truly care. As of today I have finally managed to sell the last of my many NA minis. I'm apparently stuck with the rulebook, but other than that I can wash my hands of the game once and for all. I managed to make enough (barely) on the painted stuff to compensate for losses on the rules and unfinished figs, so I can call my unpleasant little learning experience with Matt and Mongoose a free lesson and move on.