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