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 the "Giants in the Earth" Campaign.
Level a weapon to four stars.
Finish the "Priority One" Campaign.
Finish a mission on Intense Difficulty.
Equip three attachments on a single weapon.
Get grappled five times in the same mission.
Do a successful Challenge run.
Equip a colorway and decal onto a gun.
Finish the "Gift of Fire" Campaign.
Finish the "Only Way to be Sure" Campaign.
Finish a mission on Extreme Difficulty.
Finish a mission on Insane Difficulty.
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 300 Pathogen.
Eliminate 10000 Xenomorphs.
Eliminate 2000 elite enemies.
Kill 1000 enemies with fire.
Kill 1000 enemies with electricity.
Collect one attachment of every type.
Collect 25 attachments.
Collect 20 emotes.
Collect 20 hats.
Collect 40 decals.
Collect 40 colorways.
Change your hat and outfit.
Use 500 consumables.
Complete 50 missions without anyone being downed.
Complete a mission on Intense Difficulty or above without anyone taking friendly fire damage.
Complete a mission without using aid kits, ammo crates, or consumables.
Kill 50 enemies with explosive barrels or pods.
Heal your fireteam with an aid kit 100 times.