Star Wars Battlefront II improves upon the blockbuster multiplayer original with new space combat, playable Jedi, and never-before-seen environments straight out of final Star Wars: Episode III Revenge of the Sithfilm. The game features an all-new single-player experience that takes players through an epic, story-based saga where every action the player takes impacts the battlefront and, ultimately, the fate of the Star Wars galaxy. The sequel features improved flight control, complex space combat that allows players to board enemy capital ships and battle to take over flying command posts or sabotage the ship to be used against the other faction, increased total online player numbers, and memorable multiplayer encounters in 12 new locations.
The game is told as an autobiography, with an unknown clone recounting the battles of the 501st Legion. The 501st begins as part of the Old Republic, and fights against the Separatists across the galaxy. The campaign begins with Chancellor Palpatine commanding the 501st to destroy an advanced energy generator on Mygeeto, but secretly he wants them to collect the remaining samples to help power his future space station, the Death Star. Meanwhile, Palpatine himself is captured by the Separatists, and the 501st clears the way for Obi-Wan and Anakin Skywalker to rescue him. On Felucia, the 501st exterminates a small infestation of Acklay inhabiting the planet and eventually eliminates the CIS presence in the area. Afterward on the planet Kashyyyk, the clones engage a huge CIS fleet in space, while planetside they defend a vital Wookiee base from a numerically superior enemy army. With the support of Wookiees and Jedi Master Yoda, the invasion is repelled. In the final mission of the Clone Wars era, the clones strike a CIS stronghold on the planet Utapau, killing separatist leader General Grievous, with the help of Obi-Wan Kenobi.