Kill 10 guardians with headshots from the front while their shields are raised.
Complete Mass Effect 3 twice, or once with a Mass Effect 2 import.
Finish all multiplayer maps or all N7 missions in single-player.
Stop an out-of-control scheme before it's too late.
Complete three multiplayer matches or five N7 missions.
Find all required intel to help Eden Prime's colonists.
Reach level 15 in multiplayer or level 50 in single-player.
Dispatch 10 probes to retrieve people or resources in Reaper territory.
Start a character in multiplayer or customize a character in single-player.