this is a hint for getting a headstart on Courusant. First, when the battle first starts, ( this works for either the republic or the ncis ) start as the shock trooper or the guy with the rocket launcher. Then, sprint straight for the enemies' base command post. After that, get out some gernades and mines ( mines work better ) and quickly toss them right in the middle of all the troops there. The explosions should kill a ton of enemy troops right away to give you a huge upper hand in the battle!! hope it helped!