Unlockables - Complete each achievement to get the allotted gamerscore.

Ace (10) Have 8 cities in total Evolved game - Normal difficulty

Captain (5) Earn a bonus city Evolved game - Normal difficulty
Colonel (20) Score 100,000 points Evolved game - Normal difficulty

General (25) Score 50,000 points Classic game - Normal difficulty

Hotshot (15) Reach level 6 without wasting a shot Evolved game - Normal difficulty

Major (15) Score 25,000 points Evolved game - Normal difficulty
Maniac (20) Score 20,000 points Evolved game - Throttle Monkey mode
Maverick (25) Destroy 6 missiles with 1 shot Evolved game - Normal difficulty

Sentry (20) Reach level 11 without losing a base Evolved game - Normal difficulty
Sidewinder (20) Destroy 10 smart bombs in 1 game Evolved game - Normal difficulty
Sniper (10) Clear a level with only 4 shots Evolved game - Normal difficulty

Wildfire (15) Reach level 4 within 60 seconds Evolved game - Normal difficulty