Defend a human colony from attack

Successfully recruit the biotic Convict

Complete any research project in the Normandy's laboratory

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

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

Perform 30 headshot kills with any weapon on humanoid targets

Return to active duty

Completed Episode 5: "No Going Back"

Reached the terminus.

Reached the other side.

Took a breather.

Completed Episode 4: "Amid the Ruins"