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