Complete Black Ops on Hardened, Veteran, or Realistic.

In Campaign, kill an enemy through a wall or obstruction.

Enter Prestige 1 in Multiplayer while playing online.

Complete 21 daily challenges in Headquarters.

Prestige a Division in Multiplayer when playing online.

Complete the campaign.

Spend 3 minutes using Focus in the campaign.

Complete Hill 493.

Complete Collateral Damage.

Sneak through the courtyard undetected in Liberation.

Save 5 allies by throwing away a live enemy grenade.

Complete Operation Cobra.

Killed at least one of every type of Acquisition machine.