Mobilizer
Bring a veteran officer aboard.
World Shaker
Destroy an Atlas dropped from orbit.
Pathfinder
Explore a lost city.
Tunnel Rat
Survive the swarm.
Party Crasher
Sabotage a dreadnought.
Hard Target
Call down an orbital strike.
Saboteur
Disable a group of fighter squadrons.
Arbiter
Win a political stand-off.
Last Witness
Extract ancient technology.
Executioner
Defeat an old adversary.
Well Connected
Send a warning across the galaxy.
Fact Finder
Discover an enemy's monstrous origin.
Liberator
Stop a Cerberus kidnapping.
Problem Solver
Evacuate a scientific facility.
Patriot
Make the final assault.
Legend
Mission accomplished.
Master and Commander
Deliver most of the Galaxy at War assets to the final conflict.
Long Service Medal
Complete Mass Effect 3 twice, or once with a Mass Effect 2 import.
Insanity
Finish the game on Insanity without changing difficulty after leaving Earth.
Paramour
Establish or rekindle a romantic relationship.
Hijacker
Hijack an Atlas mech.
Giant Killer
Defeat a harvester.
Always Prepared
Obtain two non-customizable suits of armor.
Freedom Fighter
Find all required intel to help Eden Prime's colonists.
Prothean Expert
Learn more about the Prothean Empire.
No Stone Unturned
Investigate a sinister conspiracy.
Family Matters
Rescue a civilian from Reaper forces.
Under Pressure
Uncover an ancient secret.
Conspiracy Theorist
Use clues to pinpoint the exact location of an objective.
Savior
Free Omega from Cerberus occupation.
Talon
Find the Talon leader.
Meticulous
Complete all the Command Center side-missions on Omega.
Priority Target
Discover a plot against you.
High Society
Go undercover to follow a lead.
Team Player
Infiltrate an enemy stronghold with your crew.
Last Resort
Stop an out-of-control scheme before it's too late.
Perfect Host
Throw a party for your friends.
King of the Castle
Win a prize at one of the arcade games.
Technical Issues
Investigate a strange occurrence in the combat simulator.
Simulated Hero
Score 9999 points in the combat simulator on Normal, Hardcore, or Insanity.
The One and Only
Defeat a group of Spectre-level opponents on Normal, Hardcore, or Insanity.