Halo 3 Walkthrough | Arrival / Sierra 117 | Part 1 (Xbox 360)

Halo 3 Walkthrough Part 1 Gameplay Review Let#039;s Play Playthrough (Xbox 360) Subscribe to Channel: http://bit.ly/LrmmTe Follow me on Twitter: http://bit.ly/TsuRlZ If you enjoyed the video you may also enjoy these other walkthroughs: Halo 2 - https://www.youtube.com/playlist?list=PLebpytFvkBzvo9aSmajnwD9nCO2peOOht Halo: Combat Evolved - https://www.youtube.com/playlist?list=PLebpytFvkBzvMlypgiChn9bUthdFXcQwf