The adventures of Call to Arms span much of the known galaxy of that "world". It is a galaxy populated by various different races and "nations", although much of it is controlled by "the Empire". This is an early sketch of that galaxy that I drew early in drafting to keep myself oriented:
This is an early draft, so some things have changed. Certainly things like "Eden" which I just used as a descriptor to myself for what sort of region that's supposed to be (the birthplace of Man in this universe -- not the actual garden). I'll be working on an updated version that is intended for public consumption and hope to post it within the next couple of months.