10 A Personal Touch
Modify a weapon.
10 Always Prepared
Obtain two non-customizable suits of armor.
10 Bringer of War
Chase down an assassin.
Kill 100 enemies with melee attacks.
10 Eye of the Hurricane
Kill a brute while it's charging you.
10 Giant Killer
Defeat a harvester.
Hijack an Atlas mech.
10 Mail Slot
Kill 10 guardians with headshots from the front while their shields are raised.
Kill 250 enemies.
Visit a store in the single-player campaign.
Escape a Reaper in the galaxy map.
15 Almost There
Reach level 15 in multiplayer or level 50 in single-player.
Complete three multiplayer matches or five N7 missions.
15 Fact Finder
Discover an enemy's monstrous origin.
15 Hard Target
Call down an orbital strike.
Stop a Cerberus kidnapping.
Bring a veteran officer aboard.
15 Overload Specialist
Overload the shields of 100 enemies.
15 Party Crasher
Sabotage a dreadnought.
Explore a lost city.
15 Problem Solver
Evacuate a scientific facility.
Set 100 enemies on fire with powers.
Disable a group of fighter squadrons.
15 Sky High
Lift 100 enemies off the ground with powers.
Kill 1,000 enemies.
15 Tunnel Rat
Survive the swarm.
15 Well Connected
Send a warning across the galaxy.
15 World Shaker
Destroy an Atlas dropped from orbit.
20 Tour of Duty
Finish all multiplayer maps or all N7 missions in single-player.
Win a political stand-off.
25 Battle Scarred
Promote a multiplayer character to the Galaxy at War or import an ME3 character.
25 Combined Arms
Perform any combination of 50 biotic combos or tech bursts.
Attain the highest level of readiness in each theater of war.
Defeat an old adversary.
Evolve any of your powers to rank 6.
Upgrade any weapon to level 10.
25 Last Witness
Extract ancient technology.
25 Lost and Found
Dispatch 10 probes to retrieve people or resources in Reaper territory.
Establish or rekindle a romantic relationship.
Make the final assault.
25 Peak Condition
Reach level 20 in multiplayer or level 60 in single-player.
Kill 5,000 enemies.
Return to active duty.
Start a character in multiplayer or customize a character in single-player.
Complete one multiplayer match or two N7 missions.
50 Long Service Medal
Complete Mass Effect 3 twice, or once with a Mass Effect 2 import.
50 Master and Commander
Deliver most of the Galaxy at War assets to the final conflict.
Finish all multiplayer maps on Gold or all single-player missions on Insanity.
Finish the game on Insanity without changing difficulty after leaving Earth.