Eras of the Mercenaries is intended to enhance the gameplay of Star Wars Empire at War: Forces of Corruption by adding in dozens of era specific units, heroes, GCs, and mercenaries. Units will range from the end of the Clone Wars to the Second Galactic Civil War (40aby).
SoD will place you in 18 BBY, a pre-rebellion era where rumors of atrocities by the newly formed Empire are being spread. Many planets have strengthened their military forces in response to the New Order and it is your responsibility to unite these forces into one Alliance.
As the Alliance, you will raid Imperial assets with Kota's Independent Militia, or assault Imperial Trade Centers with a Black Sun Fleet under your command, it's up to you how, or if, you will combine your forces. As the Empire, take command of the 501st and destroy opposition in both land and space, or hire Mandalorian Mercenaries to do your dirty work, from all out fleet assaults to high-profile assassinations.