Activate Burst for the first time in Episode 1.

Defeat 30 enemies with the KAL 7

Defeat 50 enemies with hand-to-hand combat

Successfully counter all of a Brute’s damage-giving attacks

Defeat 20 enemies with hand-to-hand combat

Find and interrogate Swifty

Purchase a Talent in the single player campaign

Kill 10 000 Zombies

Complete Campaign Mode On 'Normal'

Complete Mission 9 (Any Difficulty Level)

Blow Up 1 000 Zombies

Complete Mission 6 (Any Difficulty Level)