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