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