Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Assassin	Slain 300 foes.	100
Butcher	Slain 600 foes.	100
Executioner	Slain 1000 foes.	100
Great Rite of Banishment	You have faced The One from Beyond and lived.	100
Inhuman Precision	Slain at least 150 foes while having accuracy of 70% or higher.	100
Sigil of Balance	You have found in yourself the balance between the light and the dark.	100
Sigil of Darkness	You have proven yourself to be a merciless killer and your weapon received the blessing of hell.	100
Sigil of Light	You have stood your ground and your weapon received the blessing of heavens.	100
Slayer	Slain 100 foes.	100
Ungodly Precision	Slain at least 350 foes while having accuracy of 70% or higher.	100