Here is the full list of all 50 Call of Duty: Modern Warfare 2 Campaign Remastered achievements worth 1,000 gamerscore.
Complete every missions without dying or reloading to a checkpoint at any difficulty.
Destroy the helicopter using frag grenades in 'The Only Easy Day... Was Yesterday'.
Destroy 10 choppers using the Javelin Launcher in 'Of Their Own Accord'.
Kill 11 enemies using Claymores in 'Loose Ends'.
Destroy both BTRs without using Predator Drones in 'Wolverines!'
Kill an enemy with the impact damage from a frag grenade to the head.
Kill Shepherd.
The U.S. Army Rangers ain’t no place for clowns.
Complete any mission but 'S.S.D.D.' and 'Endgame' without reloading weapons or using melee attacks.
Kill 20 enemies in a row while driving a vehicle.
Kill 5 enemies in a row using 5 different weapons or attachments.
Plant the C4 in 'Cliffhanger' without alerting or injuring anyone in the blizzard.
Beat BX time in 'S.S.D.D.'.
Ring the red bell in both rooms and survive the attack.
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.
Collect 45 enemy intel items.
Complete the mission in the airplane graveyard.
Complete 'Loose Ends' and 'The Enemy of My Enemy' on Veteran difficulty.
Assault Makarov's safehouse.
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.
Do not get your Predator Drone destroyed in 'Contingency'.
Storm the gulag.
Complete 'The Only Easy Day... Was Yesterday' and 'The Gulag' on Veteran difficulty.
Collect 22 enemy intel items.
Kill 4 enemies with 4 shots during a slow-mo breach.
Complete 'Wolverines!' and 'Exodus' on Veteran difficulty.
Instruct the Honey Badger to kill 80 enemies in 'Exodus'.
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.
Kill at least 10 enemies with one Predator Missile.
Kill 6 enemies in a row using a thermal weapon.
Find Rojas in the Favelas.
Use a Riot shield to beat down an enemy.
Kill 2 rappelling enemies in a row before they land on their feet.
Infiltrate the snowy mountain side base.
Complete 'Cliffhanger' on Veteran difficulty.
Kill 2 enemies with a single bullet.
Knife an enemy without him ever knowing you were there.
Get hand picked for Shepherd's elite squad.
Complete 'S.S.D.D.' and 'Team Player' on Veteran difficulty.
Kill 10 enemies in a row using akimbo weapons.
Kill at least 3 enemies with a single shot from a grenade launcher.
Help train the local militia.
Run The Pit in 'S.S.D.D.' and finish with a final time under 30 seconds.