Run over and kill 13 enemies with the snowmobile in the "Black Ice" Special Ops mission.

Complete the "Vertigo" Special Ops mission on any difficulty.

Buy all items from the Survival Weapon Armory.

Start the Single Player Campaign on any difficulty.

Track down Volk. Complete "Bag and Drag" on any difficulty.

Find the girl. Complete "Scorched Earth" on any difficulty.

Kill 2 enemy helicopters without getting hit in a Special Ops Survival game.

Earn 1 star in Special Ops Mission Mode.

Escape the mountain safe house. Complete "Persona Non Grata" on any difficulty.

Complete "Bag and Drag" and "Iron Lady" on Veteran difficulty.

Take down a chopper with an AC-130 smoke grenade in "Bag and Drag."

Buy all items from the Survival Air Support Armory.

Stab five stunned enemies in a row in the "Light 'Em Up" Special Ops mission.

Buy all items from the Survival Equipment Armory.

Complete the "Special Delivery" Special Ops mission on Veteran difficulty.

Rescue the Russian President. Complete "Down the Rabbit Hole" on any difficulty.

Use exactly one of each care package in the "Special Delivery" Special Ops mission.

Complete the "Iron Clad" Special Ops mission on any difficulty.

Complete the "Arctic Recon" Special Ops mission in under 3:30.

Complete the "Kill Switch" Special Ops mission on Veteran difficulty.

Complete "Mind the Gap", "Goalpost", and "Return to Sender" on Veteran difficulty.

Complete a Special Ops Mission Mode game with the same number of kills as your partner.

Kill all 5 enemies during the zero-g sequence in "Turbulence."

Destroy all helicopters in the "Vertigo" Special Ops mission.