Here is the full list of all 50 Tomb Raider achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
Win a ranked match in every multiplayer mode.
Complete a match in all multiplayer modes.
Buy every upgrade and character in multiplayer.
Reach level 60 in multiplayer.
Complete all conversations with the Endurance crew.
Shoot a bundle of dynamite out of the air.
Incapacitate 25 enemies with dodge counter.
Shoot 10 enemies off zip lines.
Rope pull 5 enemies off edges.
Kill 75 enemies with the rifle.
Fully mod and completely upgrade all weapons.
Complete all challenges.
Find all documents, relics and GPS caches.
Reach level 10 in multiplayer.
Revive a teammate in a multiplayer match.
Survive 10 explosions in multiplayer.
Purchase a new multiplayer character.
Kill and loot 10 flying animals (crows and gulls).
Kill 40 enemies with the shotgun.
Find 75% of GPS caches.
Complete all optional tombs.
Purchase all skills in all categories.
Collect 75% of all relics.
In multiplayer, escape death 3 times by using the rope ascender.
In multiplayer, be the only player on your team that isn't dead or downed.
Catch a player in a snare trap in multiplayer.
Kill 20 enemy players in multiplayer using a turret.
Kill 2 multiplayer enemies with a single explosive.
Kill a zip-lining enemy player in multiplayer.
Kill 10 multiplayer enemies using your melee attack.
Kill 35 enemies with the pistol.
Find 75% of all documents.
Complete the game.
Perform 15 finishers.
Loot 200 enemies.
Fully mod and completely upgrade any weapon.
Purchase all skills in one category.
Collect 5000 pieces of salvage.
Kill FeeFee the crab.
Find 25% of GPS caches.
Complete one optional tomb.
Kill and loot 10 large animals (deer, boar, wolves).
Collect 25% of all relics.
Kill and loot 10 small animals (rabbits, chickens, rats).
Find 25% of all documents.
Force an enemy to drop dynamite that kills two people when exploding.
Kill 25 unaware enemies.
Perform 50 headshot kills in the single player campaign.
Kill 50 enemies with the bow.
Complete one challenge.