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.
Reach level 20 in multiplayer or level 60 in single-player.
Free Omega from Cerberus Occupation.
Find the Talon leader.
Uncover an ancient secret.
Rescue a civilian from Reaper forces.
Investigate a sinister conspiracy.
Deliver most of the Galaxy at War assets to the final conflict.
Kill 100 enemies with melee attacks.
Perform any combination of 50 biotic combos or tech bursts.
Kill 10 guardians with headshots from the front while their shields are raised.
Upgrade any weapon to level 10.
Promote a multiplayer character to the Galaxy at War or import an ME3 character.
Complete Mass Effect 3 twice, or once with a Mass Effect 2 import.
Mission accomplished.
Make the final assault.
Defeat an old adversary.
Send a warning across the galaxy.
Finish all multiplayer maps or all N7 missions in single-player.
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.
Establish or rekindle a romantic relationship.
Discover an enemy's monstrous origin.
Evacuate a scientific facility.
Lift 100 enemies off the ground with powers.
Win a political stand-off.
Dispatch 10 probes to retrieve people or resources in Reaper territory.
Explore a lost city.
Kill a brute while it's charging you.
Complete one multiplayer match or two N7 missions.
Survive the swarm.
Defeat a harvester.
Destroy an Atlas dropped from orbit.
Stop a Cerberus kidnapping.
Escape a Reaper in the galaxy map.
Obtain two non-customizable suits of armor.
Start a character in multiplayer or customize a character in single-player.
Bring a veteran officer aboard.
Kill 250 enemies.
Learn more about the Prothean Empire.
Set 100 enemies on fire with powers.
Find all required intel to help Eden Prime's colonists.
Visit a store in the single-player campaign.
Chase down an assassin.
Modify a weapon.
Return to active duty.
Evolve any of your powers to rank 6.
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.
Hijack an Atlas mech.
Finish all multiplayer maps on Gold or all single-player missions on Insanity.
Use clues to pinpoint the exact location of an objective.
Complete all the Command Center side-missions on Omega.
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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