Full list of all 46 Aliens: Fireteam Elite achievements.
The base game contains 42 achievements, and there is 1 DLC pack containing 4 achievements.
Complete a mission on Intense Difficulty or above without anyone taking friendly fire damage.
Kill 50 enemies with explosive barrels or pods.
Collect 40 decals.
Eliminate 10000 Xenomorphs.
Complete 25 successful Challenge runs.
Kill 1000 enemies with fire.
Collect 20 emotes.
Collect 20 hats.
Collect 40 colorways.
Get grappled five times in the same mission.
Level a Kit to Rank 8.
Level a weapon to four stars.
Fill every slot in a perk board.
Finish a mission on Intense Difficulty.
Finish the "Only Way to be Sure" Campaign.
Finish all Campaigns on Standard Difficulty.
Collect one attachment of every type.
Collect 25 attachments.
Finish the "Gift of Fire" Campaign.
Eliminate 300 Pathogen.
Finish the "Giants in the Earth" Campaign.
Finish the "Priority One" Campaign.
Do a successful Challenge run.
Equip three attachments on a single weapon.
Change your hat and outfit.
Equip a colorway and decal onto a gun.
Finish a mission on Extreme Difficulty.
Finish a mission on Insane Difficulty.
Finish all Campaigns on Intense Difficulty.
Finish all Campaigns on Extreme Difficulty.
Finish all Campaigns on Insane Difficulty.
Return 39 pieces of intel.
Open 50 hidden caches.
Level five Kits to Rank 8.
Level 30 weapons to four stars.
Eliminate 1000 Synthetics.
Eliminate 2000 elite enemies.
Kill 1000 enemies with electricity.
Use 500 consumables.
Complete 50 missions without anyone being downed.
Complete a mission without using aid kits, ammo crates, or consumables.
Heal your fireteam with an aid kit 100 times.