Complete the level "Truth and Reconciliation" on any difficulty.
Read a terminal.
Complete the level "Halo" on any difficulty.
Find your first campaign skull.
Complete the level "Pillar of Autumn" on any difficulty.
Get 10 Headshot kills with the Sniper Rifle
Win a Race in the Campaign
Complete Wasted Garage in the Campaign
Complete Ghost Hideout in the Campaign
Complete Mass Effect 3 twice, or once with a Mass Effect 2 import.
Mission accomplished.
Make the final assault.
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.
Reach level 15 in multiplayer or level 50 in single-player.
Disable a group of fighter squadrons.
Complete three multiplayer matches or five N7 missions.
Evacuate a scientific facility.
Sabotage a dreadnought.
Discover an enemy's monstrous origin.
Dispatch 10 probes to retrieve people or resources in Reaper territory.
Establish or rekindle a romantic relationship.
Win a political stand-off.
Explore a lost city.
Kill a brute while it's charging you.
Escape a Reaper in the galaxy map.
Defeat a harvester.
Complete one multiplayer match or two N7 missions.
Survive the swarm.
Destroy an Atlas dropped from orbit.
Perform any combination of 50 biotic combos or tech bursts.
Stop a Cerberus kidnapping.
Kill 250 enemies.
Set 100 enemies on fire with powers.
Lift 100 enemies off the ground with powers.
Modify a weapon.
Bring a veteran officer aboard.
Evolve any of your powers to rank 6.
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.
You played all of your trains during the match.
You have completed the Tutorial.
You completed all of your Destination Tickets.
All of your Routes were connected at the end of the match.