I do plan on some overarching plotlines of sorts. Namely the Dathu Invasion of Terran Space and the rebellion within the Occupied Territories. Terran or friendly Xeno players are welcome to supply the rebels if they wish.
Regarding the Technology level, it is your typical Space Opera advancement. Think Star Wars, Dune, Warhammer 40k, Ender's Game Books Past the first one. You have planet busting capabilities, but chances are, you won't use these unless you are willing to have worse done against you. Regarding how you wish to create fleets of ships, it doesn't matter if you wish to use a large amount of smaller ships, a small amount of extremely large ships, or a mix of both, but please, realize that you do not have the ability to destroy the galaxy, nor even a solar system.