Why wouldn't the GMG have a navy of its own? Hell, RepEx has its own navy...
Anyway, it looks like this faction needs some more work with its RP...
Right now it looks like a YANF which is trying really hard to get what it wants by attaching itself, and its current equipment, to an unused faction. I'm not sure that you really want to be GMG, as opposed to running your own faction. Sorry...:(
We do have an RP reason for it, have you visited the Omicron systems? I'm sure you have. Everybody and their dog out there has a capital ship flying around, the reason Gcorp acts more like a navy rather then an exploration force is because everyone is getting in our damn way all the time, either we're being ransomed or some idiot is trying to blow us out of the sky. We simply cannot work without having a security force that is formidable and intimidating.
As for the ships and weapons, the thing is, it IS a guild, not a navy, it's security force IS ragtag. I will tighten up the ship list a bit but the weapons will remain, as will the capital ships selected(Except now the battlestar will be our battleship)