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