Defeat 50 enemies with hand-to-hand combat

Defeat 30 enemies with Mk-NDI grenades

Defeat 20 enemies with headshots

Defeat five enemies in a row with headshots

Score with a defender in a match

Score from a corner

Complete the Single Player campaign on any difficulty.

Assault Makarov's safe house.

Execute the plan to help the Americans.

Kill 6 enemies in a row using a thermal weapon in Single Player or Special Ops.

Kill 2 rappelling enemies in a row before they land on their feet in Single Player or Special Ops.

Kill at least 10 enemies with one Predator missile in Single Player or Special Ops.