The Sith Empire was the name given to a series of empires of the Sith that existed long before the Galactic Empire. Assume the Sith Empire has control of the territory allotted to it at the game's beginning and that the Galactic Empire controls the territory of the Old Republic. Kind of put … The Sith Empire is the symbol of evil, militaristic and kraterocratic society where members with the best … As for the titans for the Sith Empire, you could simply make a Harrower-class Dreadnought a normal top-of-the-line capital ship, and make the one with the 'super-canon' as a titan (with an ability 'Use the Main Canon' to destroy any capital ships with a single shot- we've seen in SWTOR that those super-lasers were capable of destroying literary entire fleets with a single shot).
place in the Star Wars fictional universe shortly after the establishment of a tenuous peace between the re-emergent Sith Empire and the Galactic Republic.