Here is the full list of all 50 Lost Planet 3 achievements.
Finished the Game on Hard Difficulty.
Finished the Game on Any Difficulty.
Stopped Isenberg for Good.
Watched Coronis Fall.
Defeated Laroche.
Found all Logs.
Finished Kovac's Quests.
Unlocked all Sphere Cells.
Won every Scenario.
Destroyed Satellite Array.
Delivered the T-Eng Canister 3 times during a multiplayer Alpha Lair Scenario match.
Won 25 Multiplayer Matches.
Unlocked 30 Sphere Cells.
Killed 20 Wardeyes during a multiplayer Research Lab Akrid Survival match.
Delivered The T-Eng Canister 2 times during a multiplayer Outpost Scenario match.
Get a kill while on the Battlecat.
Delivered the T-Eng Canister to win a multiplayer Quarantine Scenario match.
Found all Mementos.
Purchased all Ethologist Upgrades.
Discovered Nushi.
Restored the Fueling Depot.
Killed the Gorevorgg.
Fully Unlocked Bestiary.
Bought every Weapon and Rig Upgrade.
Planted every Post.
Found a Memento.
Discovered the Lost Contractor's Fate.
Took Storm Readings.
Completed Deep Core Drilling.
Stopped the Akrid infestation.
Tagged an Albino Tarkaa.
Opened the Armory.
Returned the Medicine.
Killed a Cat-G Akrid with the Rig.
Found 50% of Logs.
Found a Mysterious Structure.
Brought the Com-Dish Online.
Purchase First Rig Upgrade.
Won a Multiplayer Match.
Perform your first Stealth Kill in a Multiplayer Game.
Unlocked Sphere Cell.
Planted your First T-Post.
Rescued the Trapped Scientists.
Secured the Moorings.
Emptied your First T-Post.
Defended Laroche.
Got your Rig.
First Weapon Upgrade Purchased.
Found a Log.
Saved by Laroche.