Knock-knock

Kill 4 enemies with 4 shots during a slow-mo breach in Single Player or Special Ops.

Cold Shoulder

Infiltrate the snowy mountain side base.

No Rest For the Wary

Knife an enemy without him ever knowing you were there in Single Player or Special Ops.

Danger Close

Get hand picked for Shepherd's elite squad.

Ten plus foot-mobiles

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

Look Ma Two Hands

Kill 10 enemies in a row using akimbo weapons in Single Player or Special Ops.

Charlie On Our Six

Earn 8 stars in Special Ops.

The Harder They Fall

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

Hotel Bravo

Earn 4 stars in Special Ops.

Gold Star

Earn 1 star in Special Ops.

For the Record

Complete the Single Player campaign on any difficulty.

Out of the Frying Pan...

Complete the mission in the airplane graveyard.

The Pawn

Assault Makarov's safe house.

Whiskey Hotel

Take back Whiskey Hotel.

Three-some

Kill at least 3 enemies with a single shot from a grenade launcher in Single Player or Special Ops.

Desperate Times

Execute the plan to help the Americans.

Soap on a Rope

Storm the gulag.

Unnecessary Roughness

Use a riot shield to beat down an enemy in Single Player or Special Ops.

Two Birds with One Stone

Kill 2 enemies with a single bullet in Single Player or Special Ops.