Call of Duty: Modern Warfare 3 achievements

17.57%
Payback
Complete "Mind the Gap", "Goalpost", and "Return to Sender" on Veteran difficulty.
19.57%
Ménage à Trois
Destroy 3 tanks with a single 105mm shot in "Iron Lady."
20.21%
No Assistance Required
Complete a Special Ops Mission Mode game on Hardened or Veteran with no player getting downed.
20.47%
Strike!
Kill 5 enemies with a single grenade.
21.63%
The Big Apple
Complete "Black Tuesday" and "Hunter Killer" on Veteran difficulty.
21.72%
50/50
Complete a Special Ops Mission Mode game with the same number of kills as your partner.
23.14%
The Best of the Best
Complete the campaign on Hardened or Veteran difficulty.
25.08%
Danger Close
Take down a chopper with an AC-130 smoke grenade in "Bag and Drag."
26.76%
Serrated Edge
Finish a Juggernaut with a knife.
29.20%
Kill Box
Kill 20 enemies with the Chopper Gunner in a single run in "Return to Sender."
39.87%
Birdie
Kill 2 enemy helicopters without getting hit in a Special Ops Survival game.
49.93%
Jack the Ripper
Melee 5 enemies in a row.
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