This is not an early Xbox 360 build of Battlefront 3 or a private portfolio project, it's Battlefront 2 with BF3 Legacy mod and SleepKiller's Shaderpatch, and it is within everyone's reach. : r/StarWarsBattlefront
Supposed Star Wars: Battlefront III prototype leaks online -- playable on modded Xbox 360s | VentureBeat
Star Wars Battlefront III (3) Xbox 360 Build 70217 Leaked For Download | Digiex
Star Wars: Battlefront III Images - LaunchBox Games Database