Complete a WANTED Dead quest.

Destroy an Atlas dropped from orbit.

Kill 250 enemies.

Bring a veteran officer aboard.

Visit a store in the single-player campaign.

Return to active duty.

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

Survive suicide mission

Use the Omega 4 Relay

Fully upgrade a weapon

Obtain geth technology

Visit 100% of the planets in an unexplored cluster