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