Defuse 5 gas bombs in a single match in Carrier.

You performed a classic blitz play.

Cook 50 zombies with the Magnetron in Infection.

Kill a Goliath with a melee attack in Infection.

Rescue 4 survivors in a single game of Infection.

Use the cure station to kill 5 host zombies at once in Infection.

Look how the canary has flown its cage!

In Buried, be their pawn.

Complete Level 5

Survive until Round 25 in Outbreak.

Use the 3D printer 15 times in a single match in Outbreak.

Acquire the exo suit without spending any money in Outbreak.