The Tyro Pillar was a Mag-lev train carrying the Lightmass Bomb in Act 5: Desperation, of Gears of War. The train is astoundingly fast and was later infested with Locust. Presumably, before Emergence Day, it was a commercial train, carrying passengers and cargo due to the variety and quantity of carriages that it pulls and the very size of the vehicle. The front of the train carried a Lightmass Bomb and the now deceased Locust General, RAAM.