Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Captain (5 points): Earn a bonus city Evolved game - Normal difficulty.
Major (15 points): Score 25,000 points Evolved game - Normal difficulty.
Colonel (20 points): Score 100,000 points Evolved game - Normal difficulty.
General (25 points): Score 50,000 points Classic game - Normal difficulty.
Maniac (20 points): Score 20,000 points Evolved game - Throttle Monkey mode.
Ace (10 points): Have 8 cities in total Evolved game - Normal difficulty.
Sniper (10 points): Clear a level with only 4 shots Evolved game - Normal difficulty.
Maverick (25 points): Destroy 6 missiles with 1 shot Evolved game - Normal difficulty.
Hotshot (15 points): Reach level 6 without wasting a shot Evolved game - Normal difficulty.
Wildfire (15 points): Reach level 4 within 60 seconds Evolved game - Normal difficulty.
Sentry (20 points): Reach level 11 without losing a base Evolved game - Normal difficulty.
Sidewinder (20 points): Destroy 10 smart bombs in 1 game Evolved game - Normal difficulty.