Complete one multiplayer match or two N7 missions.

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

Escape a Reaper in the galaxy map.

Kill 250 enemies.

Bring a veteran officer aboard.

Chase down an assassin.

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

Contain a situation gone bad

Achieve the rating: Silent Assassin

Complete 10 challenges

Hide a body

Assassinate Diana Burnwood