Defeat five enemies in a row with headshots

Defeat 20 enemies with gunfire by aiming while hanging

Defeat 30 enemies with Mk-NDI grenades

Defeat 50 enemies with stealth attacks

Defeat 50 enemies with the 92FS - 9mm

Defeat three enemies with one explosion

Defeat 20 enemies with hand-to-hand combat

Complete a match in Competitive Co-Op mode. (Online co-op only)

Survive 1 wave in a Special Ops Survival game.

Earn 30 stars in Special Ops.

Complete the campaign on Hardened or Veteran difficulty.

Complete "Crash Site," "WMD," and "Payback" on Veteran difficulty.