Free Omega from Cerberus Occupation.
Find the Talon leader.
Uncover an ancient secret.
Rescue a civilian from Reaper forces.
Investigate a sinister conspiracy.
Establish or rekindle a romantic relationship.
Overload the shields of 100 enemies.
Attain the highest level of readiness in each theater of war.
Deliver most of the Galaxy at War assets to the final conflict.
Complete Mass Effect 3 twice, or once with a Mass Effect 2 import.
Mission accomplished.
Perform any combination of 50 biotic combos or tech bursts.
Kill 1,000 enemies.
Defeat an old adversary.
Send a warning across the galaxy.
Finish all multiplayer maps or all N7 missions in single-player.
Extract ancient technology.
Reach level 15 in multiplayer or level 50 in single-player.
Call down an orbital strike.
Complete three multiplayer matches or five N7 missions.
Disable a group of fighter squadrons.
Sabotage a dreadnought.
Discover an enemy's monstrous origin.
Evacuate a scientific facility.
Win a political stand-off.
Explore a lost city.
Defeat a harvester.
Complete one multiplayer match or two N7 missions.
Survive the swarm.
Stop a Cerberus kidnapping.
Kill 250 enemies.
Set 100 enemies on fire with powers.
Destroy an Atlas dropped from orbit.
Lift 100 enemies off the ground with powers.
Dispatch 10 probes to retrieve people or resources in Reaper territory.
Bring a veteran officer aboard.
Kill a brute while it's charging you.
Escape a Reaper in the galaxy map.
Modify a weapon.
Visit a store in the single-player campaign.
Chase down an assassin.
Return to active duty.
Evolve any of your powers to rank 6.
Start a character in multiplayer or customize a character in single-player.
Score 9999 points in the combat simulator on Normal, Hardcore, or Insanity.
Investigate a strange occurrence in the combat simulator.
Win a prize at one of the arcade games.
Throw a party for your friends.
Stop an out-of-control scheme before it's too late.
Infiltrate an enemy stronghold with your crew.
Go undercover to follow a lead.
Discover a plot against you.
Complete all the Command Center side-missions on Omega.
Make the final assault.
Finish the game on Insanity without changing difficulty after leaving Earth.
Obtain two non-customizable suits of armor.
Use clues to pinpoint the exact location of an objective.
Kill 5,000 enemies.
Kill 100 enemies with melee attacks.
Learn more about the Prothean Empire.
Find all required intel to help Eden Prime's colonists.
Finish all multiplayer maps on Gold or all single-player missions on Insanity.
Promote a multiplayer character to the Galaxy at War or import an ME3 character.
Reach level 20 in multiplayer or level 60 in single-player.
Kill 10 guardians with headshots from the front while their shields are raised.
Upgrade any weapon to level 10.
Hijack an Atlas mech.
Defeat a group of Spectre-level opponents on Normal, Hardcore, or Insanity.
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