Be the first player to get a kill in an Arms Race or Demolition match

Kill an enemy with the last bullet in your magazine (excluding sniper rifles and Zeus x27)

Killed a flying enemy with a thrown Tediore weapon

Confront Rorke (Complete "The Ghost Killer" on any difficulty.)

Find Ajax. (Complete "Struck Down" on any difficulty.)

Pounce on 10 enemies whilst controlling Riley

Take down both attack helicopters.

Kill your first enemy in the Call of Duty® Ghosts campaign.

Perform Klose Kombat

Escape the pirates and survive in the wilderness.

Completed the mission "Data Mining"

Killed Donkey Mong

Completed the mission "The Man Who Would Be Jack"