Here is the full list of all 50 Call of Duty: Modern Warfare 2 Campaign Remastered achievements worth 1,000 gamerscore.
Defend Burger Town.
Kill at least 10 enemies with one Predator Missile.
Find Rojas in the Favelas.
Infiltrate the snowy mountain side base.
Get hand picked for Shepherd's elite squad.
Kill 2 enemies with a single bullet.
Help train the local militia.
Storm the gulag.
Execute the plan to help the Americans.
Take back Whiskey Hotel.
Assault Makarov's safehouse.
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 'S.S.D.D.' and 'Team Player' on Veteran difficulty.
Complete 'Cliffhanger' on Veteran difficulty.
Complete 'Takedown' and 'The Hornet's Nest' on Veteran difficulty.
Complete 'Wolverines!' 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 'Endgame' 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'.
Use a Riot shield to beat down an enemy.
Kill 4 enemies with 4 shots during a slow-mo breach.
Kill 6 enemies in a row using a thermal weapon.
Collect 22 enemy intel items.
Collect 45 enemy intel items.
Kill 20 enemies in a row while driving a vehicle.
Kill 2 rappelling enemies in a row before they land on their feet.
Kill 5 enemies in a row using 5 different weapons or attachments.
Kill 10 enemies in a row using akimbo weapons.
Knife an enemy without him ever knowing you were there.
Kill at least 3 enemies with a single shot from a grenade launcher.
Instruct the Honey Badger to kill 80 enemies in 'Exodus'.
Do not get your Predator Drone destroyed in 'Contingency'.
Ring the red bell in both rooms and survive the attack.
Beat BX time in 'S.S.D.D.'.
Complete any mission but 'S.S.D.D.' and 'Endgame' without reloading weapons or using melee attacks.
Kill Shepherd.
Complete every missions without dying or reloading to a checkpoint at any difficulty.
Destroy both BTRs without using Predator Drones in 'Wolverines!'
Kill 11 enemies using Claymores in 'Loose Ends'.
Destroy 10 choppers using the Javelin Launcher in 'Of Their Own Accord'.
Destroy the helicopter using frag grenades in 'The Only Easy Day... Was Yesterday'.
The U.S. Army Rangers ain’t no place for clowns.
Kill an enemy with the impact damage from a frag grenade to the head.