Prologue:

We should've saw it coming, ever since the Nomads invaded in 800 A.S. For 300 years after the Nomad Incident, there was peace, and the formation of the Colonial Senate helped stop political unrest. The colonies had reached a golden age of prosperity, little piracy, little war. What we didn't expect was that the Nomads had never been a real threat, and for a while, they weren't. The Nomads left us alone for centuries, nobody has even seen a hint of them for nearly eighty years. Now it's 1124 A.S., and for the first time since its formation, the Colonial Senate is fighting amongst themselves, the colonies are weakened, and long range scans have detected Nomad activity just beyond the Border Worlds. While the colonies begun to tear apart from the inside, a expedition into deep space uncovered a world with a massive abandoned city, similar to the ruins on worlds that dot the Sirius Sector, and the worst part is, it was only abandoned for a few months. When news of this alien colony reached the Senate, they received a report from the Freeport just beyond the Border Worlds, in the Omicron Sierra System. The Freeport had detected a massive fleet of unknown ships approaching the Sirius Sector. The senators realized it only meant one thing, the Dom'Kavash have returned, and they weren't going to be happy to see them. President Kehoe, the current Chancellor for the Senate, ordered a sector-wide evacuation. Everyone must get out of the sector before the Dom'Kavash arrived. But it was too late. The Dom'Kavash have arrived at the Rhineland world of Crete in Omicron Gamma...