Punch Oz with a Goliath in Descent.

Kill 100 enemies behind you with the KL03-Trident in Descent.

Defeat Oz... again in Descent.

Defeat Oz in Descent.

Rescue a total of 20 survivors in Infection.

Jump over 4 live sharks in 10 seconds in Carrier.

Sink the boat in Carrier.

Hit 18 enemies with a single shot of the LZ-52 Limbo in Carrier.

Kill 20 enemies in a single burst of Explosive Touch in Carrier.

Use the Grenade Disposal Machine 30 times in a single match in Carrier.

Kill 100 zombies with traps in Infection.

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

Activate Bubby.