Here is the full list of all 40 XIII achievements.
Complete the campaign on the highest difficulty.
Obtain all achievements.
Complete the campaign on medium difficulty.
Stab 15 enemies from behind without being noticed.
Complete a level without being damaged.
Die more than 25 times.
Swings from a grappling hookc to another 3 times without touching the floor.
Destory the armor of a fully armored enemy, then kill him with a melee attack.
Kill 4 enemies at once with the Bazooka.
Complete the Sanctuary cliff section in under 3 minutes.
Empty the Revolver using the alternative fire mode without missing any shots.
Destroy a punching bag.
Make it through a level without shooting anyone.
Crash everything at the beach house.
Complete the campaign on easy difficulty.
Find all the documents.
Find all collectible items.
Eliminate 20 enemies with improvised weapons.
Find the secret entrance to the Sanctuary.
Find 15 documents.
Find 10 documents.
Escape the Canyons on a jet.
Eliminate 3 or more enemies with one grenade.
Get 20 pieces of armor.
Eliminate 6 enemies with one magazine of the Revolver.
Find 5 documents.
Have XIII drown.
Unlock 15 doors.
Eliminate 5 enemies in a row without alerting them.
Find a way into Emerald Base.
Find 10 medkits.
Eliminate 5 enemies in a row with a headshot with the Dragunov.
Eliminate 10 enemies without getting hurt.
Get full armor.
Kill an enemy with the last bullet of the revolver.
Eliminate 15 enemies with a headshot in one level.
Find your first document.
Eliminate 5 enemies with your fists in a row.
Find your first collectable item.
Reach the truck in Brighton Beach.