Outbreak

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Pacifist

Survive a scenario on Hard or Biohazard Difficulty with one or fewer kills.

Hardened

Survive the first twenty five waves in Onslaught.

Undead Destroyer

Defeat 100 undead threats.

Now We're Talking

Clear 10 scenarios.

The Beginning

Clear your first scenario.

Recruit

Survive 5 scenarios on Normal Difficulty.

First Wave

Clear a wave in Onslaught.

Craftsman

Construct 50 barricades.