Here is the full list of all 46 Deadfall Adventures achievements worth 1,000 gamerscore.
Finished a multiplayer match, using a self made Custom Class
Discovered the best hidden treasure in the Arctic
Disabled the crusher trap in the Arctic Base level
Escaped from the gas trap inside the Sakkara pyramid
Finished the Adventure campaign
Fought the final foe
Escaped crusher trap in Xibalba
Beaten the guardian of Xibalba
Opened a locker containing a treasure in the Mayan Temple
Collected 50 unique treasures in Adventure mode
Made his way through the Mayan City
Retrieved a treasure from a mummy's hands in the Mayan City
Collected 15 unique Power of the Warrior treasures
Left the Mayan Tombs
Used the elevator puzzle to reach the treasure in Mayan Tombs
Collected 10 unique Power of Life treasures
Explored the Mayan Tombs
Explored the secret cave in the Mayan jungle
Fought your way through the Arctic Mines
Unlocked a hidden treasure by moving minecarts in the Mines
Created a picture with light at the Ice Temple
Solved the sliding puzzle in the Ice Temple
Collected 5 unique Power of Light treasures
Defeated Stein
Travelled through the Arctic wastelands
Made his way through the Sakkara pyramid
Found the entrance to the pyramid
Found a secret treasure at the very beginning of the game
Achieve First Kill in a multiplayer match
Achieve Best Score in a multiplayer match
Achieve Best K/D score in a multiplayer match
Won a multiplayer match without dying
Collect 100 gold statues in Treasure Hunt mode
Collect 50 silver statues in Treasure Hunt mode
Kill players 100 times using traps
Unlock all weapons in multiplayer mode
Unlock all characters in multiplayer mode
Earn 200 blessings in Treasure Hunt mode
Achieve all killing spree rewards in a single match
Unlock all automatic upgrades for all weapons
Achieve highest multiplayer rank
Win 10 times in Last Man Standing mode
Kill 10 different opponents in a Deathmatch
Survive 100 enemy waves
Kill 5 players with a fire trap during one multiplayer match
Kill 500 Daru in survival mode