Heart of Darkness
ME2: Confront the Shadow Broker
The Justicar
ME2: Successfully recruit the Justicar
The Assassin
ME2: Successfully recruit the Assassin
The Prodigal
ME2: Gain the loyalty of the Cerberus Officer
The Krogan
ME2: Successfully recruit the krogan
Colony Defense
ME2: Defend a human colony from attack
The Convict
ME2: Successfully recruit the biotic Convict
Overload Specialist
ME2: Disrupt the shields of 25 enemies
Galactic Explorer
ME2: Visit 100% of the planets in an unexplored cluster
Operative
ME2: Complete a mission discovered by scanning an unexplored world
Broke, Blind, and Bedlam
ME2: Gain the loyalty of the thief
Scientist
ME2: Complete any research project in the Normandy's laboratory
The Professor
ME2: Successfully recruit the Professor
The Archangel
ME2: Successfully recruit Archangel
Power Full
ME2: Evolve any power
Very Elusive
ME2: Return to active duty
Missing in Action
ME2: Save your crew from an overwhelming attack
Completionist
ME1: Complete the majority of the game
First Aid Specialist
ME1: Use medi-gel 50 times
Archivist
ME1: Find all primary Alien: Council Races, Extinct Races and Non-Council Races codex entries