Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Blue Ribbon Champ (30 points)	In CitC, complete all Blue Ribbon Challenges.
Duke or Dimwit? (15 points)	Defeat all waves in Duke and Dimwit Theater.
Friendly Skies (15 points)	Defeat all waves in The OPS Zeal.
Hand of the Prophet (30 points)	Defeat all waves in Emporia Arcade.
Missile Defense System (30 points)	In CitC, kill an enemy with splash damage by shooting a rocket out of the air.
Museum Curator (15 points)	In CitC, unlock all Gallery items.
Rooftop Ruffian (15 points)	Defeat all waves in Raven's Dome.
Rope-a-Dope (15 points)	In CitC, knock an enemy off the city with Undertow, then rescue him, then knock him off again.
Sergeant-at-Arms (15 points)	In CitC, get a kill with each weapon and vigor (except Bucking Bronco).
The Ol' One-Two (15 points)	In CitC, use all eight different vigor combos to deliver the killing blow on an enemy.