Get 30 headshots while scoped in with the Fareye or Marksman in the single player Campaign.

Get 10 one-hit head-shot kills with the shotgun in the single player Campaign.

Collect 5 pieces of intel in the single player Campaign.

Kill 40 hybrids in the single player Campaign.

Complete Mission on any difficulty: Approach

Headshot 10 enemies with the Sniper Rifle.

Slice up 10 enemies with the Laser.

Kill 4 enemies with one Grenade.

Kill 10 enemies using combat opportunities.

Pin 10 enemies to the wall with the Hammerhead.

Collect 50% of the journal intelligence found throughout the game.

Complete Mission on any difficulty: Ruin

Kill yourself 5 times.