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.

Kill a brute while it's charging you.

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

Kill 100 enemies with melee attacks.

Evacuate a scientific facility.

Explore a lost city.

Survive the swarm.

Complete one multiplayer match or two N7 missions.

Kill 250 enemies.

Bring a veteran officer aboard.