You can send Jyn Erso and Cassian Andor to recover the Death Star plans. You can confuse Imperials with false orders and assaults behind enemy lines. You can command Director Krennic and his finest death troopers. And you can set traps for the Rebel pilots and soldiers, luring them away from their base and into massive battles with more fully cinematic combat and tactics. Even Jabba the Hutt makes an appearance, offering his services to the Empire and feeding his prisoners to the Sarlaac.