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