Full list of all 76 Call of Duty: Modern Warfare 3 achievements worth 1,610 gamerscore.
The base game contains 50 achievements worth 1,000 Gamerscore, and there are 3 DLC packs containing 26 achievements worth 610 Gamerscore.
Complete "Scorched Earth", "Down the Rabbit Hole", and "Dust to Dust" on Veteran difficulty.