Complete your first run.

Eliminate 100 zombies in total.

Survive for 5 minutes in a single run.

Bring 3 power relays online in total.

Defeat a boss.

Secure the abandoned ambulance.

Reach the dawn.

Complete your first weapon evolution.

Complete 3 weapon evolutions in one run.

Eliminate 2,500 zombies in total.

Fully recharge every battery cell at a relay.

Crush 100 zombies with the tank.

Complete 10 runs.

Carry the transmitter to the antenna tower and complete your first broadcast.

Complete 10 broadcasts in total.

Defeat 20,000 Dark Hunters in total.

Defeat 10,000 Siege Guards in total.

Defeat Alpha 1,000 times in total.

Defeat Mutant 500 times in total.