Here is the full list of all 13 BloodRayne: Terminal Cut achievements.
Find the severed head guns
Kill Beliar and Wulf
Complete the game on normal difficulty
Complete the game on hard difficulty
Kill Simon Krieger first
Kill Sigmund Krieger first
Kill Mynce
Kill D. Mauler
Kill Dr. Bathory Mengele
Kill Von Blut
Find the Ark of the Covenant
Kill Queen of the Underworld
Deface the Louisiana Chapel