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 "Gift of Fire" Campaign.
Eliminate 300 Pathogen.
Level a weapon to four stars.
Collect one attachment of every type.
Finish the "Giants in the Earth" Campaign.
Collect 25 attachments.
Equip three attachments on a single weapon.
Do a successful Challenge run.
Finish the "Priority One" Campaign.
Change your hat and outfit.
Equip a colorway and decal onto a gun.
Finish the "Only Way to be Sure" Campaign.
Finish a mission on Intense Difficulty.
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 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.
Get grappled five times in the same mission.
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.