Kill 20 enemies with the Chopper Gunner in a single run in "Return to Sender."
Earn 1 star in Special Ops Mission Mode.
Complete the campaign on any difficulty.
Complete the campaign on Hardened or Veteran difficulty.
Rescue the Russian President. Complete "Down the Rabbit Hole" on any difficulty.
Find the girl. Complete "Scorched Earth" on any difficulty.
Discover Makarov's next move. Complete "Stronghold" on any difficulty.
Escape the city. Complete "Blood Brothers" on any difficulty.
Reach the church. Complete "Eye of the Storm" on any difficulty.
Escape Paris with Volk. Complete "Iron Lady" on any difficulty.
Track down Volk. Complete "Bag and Drag" on any difficulty.
Collect 22 Intel Items.
Assault the shipping company. Complete "Return to Sender" on any difficulty.
Save the US Vice President. Complete "Goalpost" on any difficulty.
Make it to Westminster. Complete "Mind the Gap" on any difficulty.
Infiltrate the village. Complete "Back on the Grid" on any difficulty.
Defend the Russian President. Complete "Turbulence" on any difficulty.
Escape the mountain safe house. Complete "Persona Non Grata" on any difficulty.
Take back New York Harbor. Complete "Hunter Killer" on any difficulty.
Destroy the Jamming Tower. Complete "Black Tuesday" on any difficulty.
Start the Single Player Campaign on any difficulty.
Melee 5 enemies in a row in Single Player or Special Ops.
Kill 9 enemies with A-10 strafing runs in "Scorched Earth."
Survive 1 wave in a Special Ops Survival game.
Complete "Black Tuesday" and "Hunter Killer" on Veteran difficulty.
Complete "Persona Non Grata", "Turbulence", and "Back on the Grid" on Veteran difficulty.
Complete "Mind the Gap", "Goalpost", and "Return to Sender" on Veteran difficulty.
Complete "Bag and Drag" and "Iron Lady" on Veteran difficulty.
Complete "Eye of the Storm", "Blood Brothers", and "Stronghold" on Veteran difficulty.
Complete "Scorched Earth", "Down the Rabbit Hole", and "Dust to Dust" on Veteran difficulty.
Kill 5 enemies with a single grenade in Single Player or Special Ops.
Collect 46 Intel Items.
Kill 30 enemies with the XM25 in "Black Tuesday."
Destroy all the choppers with only the UGV's grenade launcher in "Persona Non Grata."
Destroy all targets during the mortar sequence with only 4 shells in "Back on the Grid."
Take down a chopper with an AC-130 smoke grenade in "Bag and Drag."
Destroy 3 tanks with a single 105mm shot in "Iron Lady."
Complete a Special Ops Mission Mode game with the same number of kills as your partner.
Kill 2 enemy helicopters without getting hit in a Special Ops Survival game.
Finish a Juggernaut with a knife in Special Ops.
Buy all items from the Survival Weapon Armory.
Buy all items from the Survival Air Support Armory.
Buy all items from the Survival Equipment Armory.
Have $50,000 current balance in a Special Ops Survival game.
Reach Wave 10 in each mission of Special Ops Survival mode.
Reach Wave 15 in each mission of Special Ops Survival mode.
Complete a Special Ops Mission Mode game on Hardened or Veteran with no player getting downed.
Earn 1 star in each mission of Special Ops Mission Mode.
Earn 48 stars in Special Ops Mission Mode.
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