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