Here is the full list of all 46 Medal of Honor: Airborne achievements worth 1,000 gamerscore.
Got over 1,000 kills and 500 Objective Points in ranked matches
Got over 20 first place finishes in ranked matches
Played 20 consecutive ranked matches without getting a team kill
Got over 20 top three finishes in ranked matches
Got over 500 kills and 250 Objective Points in ranked matches
Was on the winning team for every map in ranked matches
Played every map at least once in a ranked match
Killed an enemy player with a grenade while he was parachuting
Killed an enemy player while he was parachuting
Got 20 kill assists throughout a career in ranked matches
Killed an enemy with a pistol melee attack
Recovered full health after being in verge of death state
Killed an enemy with a melee kick
Got over 10 Objective Points in a ranked match
Got 20 Team Points in a ranked match
Got 10 Team Points in a ranked match
Completed Jump Training
Touched down with a greased landing
Touched down with a flared landing
Killed three enemies with a cooked grenade
Get pushed out of the plane in any mission
Kill an enemy with a melee kick
Discover one skill drop location in each mission
Discover all skill drop locations in the game
Get 10 headshots in a row
Earn a 5-in-a-row
Kill an enemy using sprint-melee
Kill an enemy while moving in iron sights
Kill an enemy by kicking a grenade at him
Crouch-sprint between cover objects
Fully upgrade one weapon
Fully upgrade five weapons
Fully upgrade all weapons
Complete any operation without dying
Complete Operation Husky
Complete Operation Avalanche
Complete Operation Neptune
Complete Operation Market Garden
Complete Operation Varsity
Complete Der Flakturm
Complete the game on Casual difficulty
Complete the game on Normal difficulty
Complete the game on Expert difficulty
Come in first place on every map in any game mode in ranked matches
Upgrade all weapons in ranked matches