Lieutenaunt JG difficulty
Successfully complete the game under the Ensign difficulty setting.
Lieutenaunt difficulty
Successfully complete the game under the Lieutenant JG difficulty setting.
Lieutenaunt Commander difficulty
Successfully complete the game under the Lieutenant difficulty setting.
The Commander difficulty
Successfully complete the game under the Lieutenant Commander difficulty setting.
Captain difficulty
Successfully complete the game under the Commander difficulty setting.
Rear Admiral difficulty
Successfully complete the game under the Captain difficulty setting.