Make goblins die of three different environmental hazards in a single level

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

Make the final assault.

Send a warning across the galaxy.

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

Kill 1,000 enemies.

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

Sabotage a dreadnought.

Defeat Iguana

Defeat the S-02

Got an Ultimate Strike.

Completed Chapter 5.