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