Quarantine Zone (achievement)

Quarantine Zone is an achievement in Halo 2 Vista, and Halo: The Master Chief Collection. In the PC game it is worth 30 gamerpoints and is unlocked by beating the level Quarantine Zone on Normal, Heroic, or Legendary. In The Master Chief Collection it is only worth 10 gamerpoints, though it can also be unlocked on Easy.

In the PC game it is represented by a Flood infection form. In The Master Chief Collection it is represented by a screenshot of an anti-gravity gondola.