They have more conventional methods of training their troopers and accomplishing their objectives. The Empire has access to powerful fleets, legions of trained troopers, and access to technologies that will make their enemies cower before them. You can certainly expect, then, that the Empire reflected in the game will be played in much the same way.
The promise of power ensnared many individuals, and the enactment of that power destroyed all that refused to surrender. The Empire took the place of the benevolent Old Republic, which crumbled at the end of the epic struggle between an internal rebellion called the Clone Wars, which as artfully crafted by the dark Emperor Palpatine, master of the evil Sith. The Galactic Empire was formed based on the ideals of twisted madmen, supported by the rise of a powerful Dark Lord with powers beyond that of any other men, and maintained power through an ideology of strength-through-fear. There are also several indigenous aliens which you may make alliances or enemies with, but gameplay focuses around the main two The Galactic Empire and the Rebel Alliance. These factions are diverse and they will deliver different experiences depending on which you play.
In Empire at War, there are two major factions.