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