Kill 10 guardians with headshots from the front while their shields are raised.

Overload the shields of 100 enemies.

Finish all multiplayer maps or all N7 missions in single-player.

Deliver most of the Galaxy at War assets to the final conflict.

Kill 1,000 enemies.

Complete three multiplayer matches or five N7 missions.

Establish or rekindle a romantic relationship.

Discover an enemy's monstrous origin.

Reach level 15 in multiplayer or level 50 in single-player.

Evolve any of your powers to rank 6.

Obtain two non-customizable suits of armor.

Kill a brute while it's charging you.

Defeat a Harvester.