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