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