Fully upgrade a weapon

Warp the barriers of 25 enemies

Disrupt the shields of 25 enemies

Incinerate the armor of 25 enemies

Hit 20 different targets with multiple biotic powers to combine the effects

Collect 6 Cerberus data packets scattered across Aite

View all advanced combat training videos at Shepard's private terminal.

Shoot and kill 20 enemies while they're knocked back by a punch

Help the Justicar resolve her mission

Hack a geth collective

Gain the loyalty of the biotic Convict

Gain the loyalty of the Assassin

Gain the loyalty of the krogan

Thresher Maw defeated

Gain the loyalty of the Professor

Kill enemies with 5 different heavy weapons during the game

Successfully recruit the Justicar

Use the Omega 4 Relay

Successfully recruit the Assassin

Gain the loyalty of the Cerberus Officer

Gain the loyalty of the quarian

Obtain geth technology

Evolve any power

Gain the loyalty of Archangel

Complete 5 missions discovered by scanning unexplored worlds

Complete the investigation of a derelict alien vessel

Successfully recruit the Quarian

Gain the loyalty of the Cerberus Operative

Visit 100% of the planets in an unexplored cluster

Defend a human colony from attack

Successfully recruit the Krogan

Successfully recruit the biotic Convict

Gain the loyalty of the thief

Obtain 10 technology upgrades

Complete any research project in the Normandy's laboratory

Successfully shut down the rogue VI in Project Overlord

Complete a mission discovered by scanning an unexplored world

Successfully recruit the Professor

Perform 30 headshot kills with any weapon on humanoid targets

Successfully recruit Archangel

Make 20 enemies scream as they fall or are set on fire

Unlock 15 new Mass Effect 2 codex entries

Retrieve mineral resources by scanning and probing a planet in the galaxy map

Personalize your armor

Return to active duty

Save your crew from an overwhelming attack

Gain the loyalty of the mercenary ("Cerberus Pack" downloadable content)