Here is the full list of all 40 XIII achievements worth 1,000 gamerscore. It takes around 8-10 hours to unlock all of the achievements on Xbox One.
Find your first collectable item
Find 10 Medkits
Get 20 pieces of Armor
Crash everything at the beach house
Find your first document
Find 5 documents
Find 10 documents
Get full armor
Kill an enemy with the last bullet of the revolver
Destroy the punching bag
Have XIII drown
Die more than 25 times
Try to reach the truck in Brighton Beach
Find a way into Emerald Base
Escape the Canyons on a jet
Find 15 documents
Eliminate 5 enemies in a row without alerting them
Eliminate 5 enemies in a row with a headshot with the Dragounov.
Eliminate 15 enemies with a headshot in one level
Eliminate 5 enemies with your fists in a row
Eliminate 20 enemies with Improvised Weapons
Eliminate 10 enemies without getting hurt
Complete the campaign on easy difficulty
Empty the magazine of the revolver using the alternative fire mode without missing any shots
Deplete the armor of a fully armored enemy, then kill him with a melee attack
Make it through a level without shooting anyone
Swing from one grappling hook another 3 times without touching the floor
Unlock 15 doors
Complete sanctuary cliff in under 3 minutes
Kill 4 enemies at once with the bazooka
Find the secret entrance to Sanctuary
Eliminate 3 or more enemies with one grenade
Eliminate 6 enemies with one magazine of the .44 Magnum
Complete the campaign on medium difficulty
Complete a level without being damaged
Find all collectible items
Find all the documents
Stab 15 enemies from behind without being noticed
Complete the campaign on maximum difficulty.
Obtain all the achievements of the game.