Hoarder
Find all weapons


If you found a new weapon that didn't counted on the achievement just continue the game and once you find it again pick it up and check if you got pop-up notification for the achievement progress. If you finished the game and still a weapon has not be counted, select a level and repeat the process until all counted.

Armed & Completionist
Use all weapons


If you used a new weapon that didn't counted on the achievement just continue the game and once you find it again pick it up and use it again and check if you got pop-up notification for the achievement progress. If you finished the game and still a weapon has not be counted, select a level and repeat the process until all counted.

Can’t Homidecide
Kill an enemy with every weapon


If you killed an enemy with a new weapon that didn't counted on the achievement just continue the game and once you find again the same weapon pick it up and kill an enemy again and check if you got pop-up notification for the achievement progress. If you finished the game and still a weapon has not be counted, select a level and repeat the process until all counted.

Press ALL the Buttons!
Use every weapon’s secondary fire mode


If you used a new weapon's secondary fire mode that didn't counted on the achievement just continue the game and once you find it again the same weapon pick it up and use it again and check if you got pop-up notification for the achievement progress. If you finished the game and still a weapon has not be counted, select a level and repeat the process until all counted.

No Stone Unturned
Complete single player campaign on all difficulty levels


If you completed the game on Normal, Hard or Brutal and didn't counted on the "No Stone Unturned" achievement progress just select New Game, select also that same difficulty and finish the first mission.

Welcome to the Party
Join a multiplayer game


Home Team
Play as a human in a multiplayer game


Away Game
Play as an alien in a multiplayer game


Dominator
Win 10 multiplayer games


Immortal
Never die during a single multiplayer match


Supreme Being
Get the most kills during a single multiplayer match


There Can Be Only YOU!
Get the most kills AND never die during a single multiplayer match


Hard Headed
Completely recover from damage 3 times during a multiplayer match


All Multiplayer achievements are bugged and the only way to earned them is to join a server as first player. To confirm that you are the first player on a server press the button (BACK for 360 controller and probably TAB for keyboard) that shows the current player list.

NOTE: Dominator will be unlocked with only 1 win and not 10 as required.