Breaking Quarantine

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Breaking Quarantine
This article is about the achievement. For the short story, see Breaking Quarantine.

Breaking Quarantine is an achievement in Halo: Combat Evolved Anniversary that is awarded for escaping the Flood containment facility on the level 343 Guilty Spark in 21 minutes or less.[1] It is represented by an analog clock with the number "21" beside it on top of a purple octagon.

The Achievement is worth 25 Gamerpoints.


  • The name of the achievement is a likely reference to the story Breaking Quarantine from the Halo Graphic Novel, as the plot of it (Sergeant Major Avery Johnson escaping from the same facility) effectively matches that of what the achievement requires.
  • The fact that the player must escape the facility within twenty-one minutes is a reference to the number seven, as 21/3 = 7.


Halo CE Anniversary Logo Huge.png Achievements in Halo: Combat Evolved Anniversary
Campaign Pillar of AutumnHaloTruth and ReconciliationThe Silent CartographerAssault on the Control Room343 Guilty SparkThe LibraryTwo BetrayalsKeyesThe MawBirth of a SpartanBelieve in a HeroLiving LegendStandard Operating BrocedureBrovershieldBrohammer
Level-specific He's Unstoppable!Overshields are for SissiesWalk it OffNo-Fly ZoneHow PedestrianAll According to Plan...Close Quarters CombatBeachheadGrenadierWraith HunterI'll Be Taking That!This One's for Jenkins!Breaking QuarantineThat Just HappenedSpeed ReaderLook Out for the Little GuysLeave It Where It LayTying Up Loose EndsPopcorn.gifThis Side UpNever Tell Me the Odds
Terminals What have we here?Heavy ReadingDear Diary...
Campaign Skulls Looks like the OddballSkulls Taken!HeadhunterTsantsa