That's a really awesome looking bit of virtual hardware. A fitting centrepiece to the rebel fleet. Of course, now that it's been made, it will have to star in it's signature battle, which means we'll have to have the BoE (or at least
a BoE. There were plenty of pilots that didn't do the DS2 run but stayed outside, zapping Imperial forces & holding the line until the reactor could be reached & destroyed).
Incidentally;
actualy the Ion Cannon on off was FROM a capital ship, so it does make perfect sense
No it wasn't. The power core that ran it was from an old cap-ship, but the gun was a V-150 Planet Defender, designed to be a purely ground-based installation. That said, I always thought the Empire should have tweeked the design & fitted 4 of them into an Interdictor chassis in place of the grav-wells - a couple of shots disabled an ISD, so 4 firing independently could have decimated entire fleets. Still, I suppose that's one of the reasons why they lost (that & the plot demanded it).