Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Astrologer	Get three stars from 100 missions.
Biowarrior	Kill 500 enemies.
I <3 Stars	Get three stars from 25 missions.
Starlord	Get three stars from all missions.
Stars researcher	Get three stars from 50 missions.
The Apprentice	Complete 25 missions.
The Documents	Collect 10 briefcases.
The Hero	Complete all the missions.
The Hope	Complete 100 missions.
The Informer	Collect 50 briefcases.
The Researcher	Collect 100 briefcases.
The Savior	Complete 50 missions.
The Spy	Collect all briefcases.
The Warrior	Kill 100 enemies.