Complete Mass Effect 3 twice, or once with a Mass Effect 2 import.

Make the final assault.

Defeat an old adversary.

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

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

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

Disable a group of fighter squadrons.

Attain the highest level of readiness in each theater of war.

Complete three multiplayer matches or five N7 missions.

Evacuate a scientific facility.

Sabotage a dreadnought.

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

Start a character in multiplayer or customize a character in single-player.