Outbreak

The Beginning

Clear your first scenario.

Undead Destroyer

Defeat 100 undead threats.

Now We're Talking

Clear 10 scenarios.

Recruit

Survive 5 scenarios on Normal Difficulty.

Pacifist

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

First Wave

Clear a wave in Onslaught.

Hardened

Survive the first twenty five waves in Onslaught.

Craftsman

Construct 50 barricades.