Upgrade the Aquila.
Witness a predator killing an enemy.
Complete 50% of the Progress Tracker entries.
See all the optional characters settled at the Homestead.
Liberate all districts in Boston OR New York.
Complete Present - Stadium.
Complete Sequence 8.
Complete Sequence 7.
Recruit any of the Artisans and see them settled on the Homestead.
Complete Present - Skyscraper.
Complete Sequence 5.
Be invited to join a Club.
Complete Sequence 4.
Complete Sequence 3.
Re-Enter the Animus.
Get A Headshot During The Rooftop Tremors
Complete Mass Effect 3 twice, or once with a Mass Effect 2 import.
Mission accomplished.
Make the final assault.
Kill a brute while it's charging you.
Kill 1,000 enemies.
Defeat an old adversary.
Reach level 15 in multiplayer or level 50 in single-player.
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.
Complete three multiplayer matches or five N7 missions.
Kill 100 enemies with melee attacks.
Sabotage a dreadnought.
Evacuate a scientific facility.
Discover an enemy's monstrous origin.
Obtain two non-customizable suits of armor.
Defeat a harvester.
Survive the swarm.
Dispatch 10 probes to retrieve people or resources in Reaper territory.
Evolve any of your powers to rank 6.
Complete one multiplayer match or two N7 missions.
Start a character in multiplayer or customize a character in single-player.
Destroy an Atlas dropped from orbit.
Stop a Cerberus kidnapping.
Kill 250 enemies.
Bring a veteran officer aboard.
Escape a Reaper in the galaxy map.
Modify a weapon.
Visit a store in the single-player campaign.
Chase down an assassin.
Return to active duty.
Reach Level 10
Melee 5 enemies in a row in Single Player or Special Ops.