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