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

Extract ancient technology.

Establish or rekindle a romantic relationship.

Disable a group of fighter squadrons.

Discover an enemy's monstrous origin.

Obtain two non-customizable suits of armor.

Explore a lost city.

Complete one multiplayer match or two N7 missions.

Destroy an Atlas dropped from orbit.

Dispatch 10 probes to retrieve people or resources in Reaper territory.

Bring a veteran officer aboard.

Set 100 enemies on fire with powers.

Visit a store in the single-player campaign.