Destroy an Atlas dropped from orbit.

Kill 250 enemies.

Complete an event purely from helmet cam

Visit a store in the single-player campaign.

Evolve any of your powers to rank 6.

Return to active duty.

Complete Mass Effect 2 twice, or complete it once with a character imported from Mass Effect 1

Use the Omega 4 Relay

Successfully shut down the rogue VI in Project Overlord

Obtain geth technology

Help the Justicar resolve her mission

Successfully recruit the Justicar

Thresher Maw defeated