Here is the full list of all 50 Call of Duty: Modern Warfare Remastered achievements worth 1,000 gamerscore.
Kill 20 attack dogs with a knife.
Kill Makarov and complete your mission
Destroy 8 enemy helicopters in 'Heat'.
Shoot down an enemy helicopter with an RPG in the single player campaign.
Find and use the hidden cache in 'Heat'.
Complete any level using only the knife to kill enemies.
Complete any level without reloading your weapon (excluding 'The Coup' and 'Aftermath').
Kill 3 enemies in a row with your knife in the single player campaign.
Find the Desert Eagle in 'Crew Expendable' and kill 5 enemies with it.
Sky dive to safety on Veteran difficulty.
Complete the game on any difficulty.
Complete the game on Hardened or Veteran difficulty.
Complete 'Game Over' on Veteran difficulty.
Complete 'Ultimatum', 'All In', and 'No Fighting in the War Room' on Veteran difficulty.
Corner Zakhaev's Son.
Complete 'Heat' and 'The Sins of the Father' on Veteran difficulty.
Kill 20 enemies with explosives in a single level.
Carry Cpt. MacMillan to safety.
Complete 'All Ghillied Up' and 'One Shot, One Kill' on Veteran difficulty.
Kill at least 3 rappelling enemies in a single rope.
Survive a dog attack.
Complete 'All Ghillied Up' without alerting any enemies.
Find Al-Asad's safehouse.
Complete 'Safehouse' on Veteran difficulty.
Complete 'Shock and Awe' on Veteran difficulty.
Complete 'The Bog' and 'War Pig' on Veteran difficulty.
Operate an AC-130 gun ship.
Complete 'Hunted' and 'Death From Above' on Veteran difficulty.
Kill 5 enemies with one shot while in the AC-130 gunship.
Stab an injured crawling enemy.
Kill an enemy while blinded by a flashbang in the single player campaign.
Save the farmer.
Protect 'War Pig', the Abrams tank.
Save Pvt. Roycewicz on the stairs.
Complete 'Charlie Don't Surf' on Veteran difficulty.
Kill 2 enemies by blowing up a car in the single player campaign.
Kill the power.
Complete 'Blackout' on Veteran difficulty.
Kill 4 enemies in a row with headshots in the single player campaign.
Infiltrate a cargo ship.
Complete 'Crew Expendable' on Veteran difficulty.
Complete 'F.N.G.'.
Complete the cargo ship mockup in less than 19 seconds.
Find 15 enemy intel items.
Find 30 enemy intel items.
Destroy all the TVs showing Al-Asad's speech.
Get a kill with each type of handheld gun, explosive and launcher in the single player campaign.
Kill all 4 tanks on the overpass with the Javelin missile in 'The Bog'.
Beat IW best time on the Ship Training course in 'F.N.G.' (15.1 sec).
Alert the enemy helicopter in 'All Ghillied Up' and take it down.