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