Alright. So I've run out of energy tonight for further attempting to figure out how to get the Elysiums main gun working; I'm not even really sure how much progress I've even made.
So I decided to do some other balancing instead. First things first, I think I'm going to have to make it so that the medium turrets can't point forward, both because the damage is ridiculous and because the Elysium simply can't cope with the amount of flux being generated. Besides, her graceful design is far more suited to delivering broadsides. The Pandora Array, her special weapons system, is for dealing blows to the fore... or will be, when I (quite probably with considerable Lazy Wizard assistance) finish working on it.
Screenshots spoilered due to resolution.
Some of you have likely noticed that neither the Elysium nor the Shamash have a ship system yet. The Elysium will likely receive a maneuvering drive of some description; the Shamash I plan to give a limited capacity to lay mines. I've also been slowly expanding a list of ship names for the faction, though so far I only have 330.
Oh, and Shadowyards engines are pink now, so yeah.