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