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