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

Defeat 30 enemies with the Arm Micro

Make five enemies drop their grenade by shooting them

Defeat 20 enemies with hand-to-hand combat

Find one treasure

Kill 25 Grims using only grenades

Get a kill with every weapon in your arsenal

Kill 1000 enemies

Use the Atomizer secondary fire to kill 30 enemies

Get 50 headshot kills in Campaign Mode

Kill 50 enemies with the Bullseye or Marksman while moving, without using zoom

Kill 20 enemies with environmental objects

Defeat the Brawler in the Post Office in under 2 minutes