Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Big Momma (20 points)	Kill the Rhino.
C'est la vie (80 points)	Destroy D6.
Forest Guardian (20 points)	Save the Bear from the Watchmen after the fight.
Freedom! (10 points)	Free the Prisoners.
Nobody's Home (10 points)	Ignore the Phone Call in the Anomaly.
Redemption (100 points)	Save D6.
Revelation (25 points)	Make Moskvin tell the truth with help from the Dark One.
Revenge (35 points)	Kill Pavel.
Savior (20 points)	Remove your mask when Lesnitsky demands it.
Secret (10 points)	Find out about the Reds' plans.
Within a Hair of Death (10 points)	Escape from the Red Line.