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

Break the grinder

Sink Atlantis

Acquire Thera's Bane

Execute a 200-Hit Combo

Rip out Scylla's jaw

Collect 5 pieces of intel in the single player Campaign.

Defeat the Goliath in the single player Campaign.

Beat the Game on any Difficulty

Free yourself from the depths of Hades

Finish the Campaign on at least Normal difficulty

Run over 10 Mutants

Complete Jackal Canyon in the Campaign