Breaking Quarantine is a campaign achievement in Halo: Combat Evolved Anniversary. This achievement is obtained when a player escapes the Forerunner facility on the level “343 Guilty Spark” in 21 minutes or less.
- The name of this achievement is a reference to a story featured in the Halo Graphic Novel, detailing Johnson's escape from the Flood Containment Facility on Installation 04.
- Escaping the facility within 21 minutes may be a "7" reference as 21=7x3. However, this is highly unlikely as the game was made by 343i rather than Bungie. 343i has yet to develop Bungie's love of the number 7.
Community content is available under CC-BY-SA unless otherwise noted.