Complete the Single Player campaign on any difficulty.
Complete the single player campaign on Hardened or Veteran Difficulty.
Complete 'Just Like Old Times' and 'Endgame' on Veteran Difficulty.
Complete the mission in the airplane graveyard.
Complete 'Loose Ends' and 'The Enemy of My Enemy' on Veteran Difficulty.
Assault Makarov's safe house.
Take back Whiskey Hotel.
Complete 'Of Their Own Accord', 'Second Sun', and 'Whiskey Hotel' on Veteran Difficulty.
Execute the plan to help the Americans.
Complete 'Contingency' on Veteran Difficulty
Complete 'The Only Easy Day... Was Yesterday' and 'The Gulag' on Veteran Difficulty.
Storm the gulag.
Complete 'Wolverines!' and 'Exodus' on Veteran Difficulty.
Complete 'Takedown' and 'The Hornet's Nest' on Veteran Difficulty.
Kill 7 chickens in under 10 seconds in 'The Hornet's Nest'.
Defend Burger Town.
Find Rojas in the Favelas.
Infiltrate the snowy mountain side base.
Complete 'Cliffhanger' on Veteran Difficulty.
Plant the C4 in 'Cliffhanger' without alerting or injuring anyone in the blizzard.
Complete 'S.S.D.D' and 'Team Player' on Veteran Difficulty.
Get hand picked for Shepherd's elite squad.
Help train the local militia.
Earn all 3 stars in at least 15 different Special Op missions.
Earn at least 1 star in 11 different Special Op missions.
Kill 4 enemies in a row while downed in Special Ops.
Kill 20 enemies in a row while driving a vehicle in Single Player or Special Ops.
Kill 4 enemies with 4 shots during a slow-mo breach in Single Player or Special Ops.
Use a riot shield to beat down an enemy in Single Player or Special Ops.
Earn all 3 stars in at least 10 different Special Op missions.
Earn 30 stars in Special Ops.
Earn 21 stars in Special Ops.
Earn all 3 stars in at least 5 different Special Op missions.
Run The Pit in 'S.S.D.D' and finish with a final time under 30 seconds.
Kill 6 enemies in a row using a thermal weapon in Single Player or Special Ops.
Kill at least 3 enemies with a single shot from a grenade launcher 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 a Juggernaut in Special Ops.
Kill 10 enemies in a row using akimbo weapons in Single Player or Special Ops.
Earn 8 stars in Special Ops.
Knife an enemy without him ever knowing you were there in Single Player or Special Ops.
Earn 4 stars in Special Ops.
Kill 2 enemies with a single bullet in Single Player or Special Ops.
Kill at least 10 enemies with one Predator missile in Single Player or Special Ops.
Kill 5 enemies in a row using 5 different weapons or attachments in Single Player or Special Ops.
Earn 1 star in Special Ops.
Earn at least 1 star in each Special Op mission.
Earn 69 stars in Special Ops.
Collect 22 enemy intel items.
Collect 45 enemy intel items.
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