Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
A Plan Came Together (20 points)	Completed Chapter 3 of Episode 2.
Bro or Bot (30 points)	Completed Chapter 6 of Episode 2.
Classic Reflexes (30 points)	Completed Chapter 5 of Episode 2.
Deal With A Ghost (20 points)	Completed Chapter 1 of Episode 2.
Funeral Crashers (30 points)	Completed Chapter 4 of Episode 2.
Miracle of Atlas Engineering (50 points)	Completed Episode 2.
Till Death Do Us Part (20 points)	Completed Chapter 2 of Episode 2.