Review Scores

Ratings

Certain Affinity / Valve Software

Shooter

10/05/10 Electronic Arts
10/05/10 Electronic Arts
10/05/10 Electronic Arts

Unlockable:	How to unlock:
Barrel Rolled (50)	Kill a Special Infected with an exploding barrel.
Chaos Generator (50)	Have all 3 generators running at once in "The Sacrifice" finale.
Kill Bill (50)	Have Bill sacrifice himself for the team.
Sacrifizzle (50)	As a Special Infected, incap someone who is trying to sacrifice themselves.
Supreme Sacrifice (50)	Complete "The Sacrifice".

Unlockable	How to Unlock

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