Annex, The Tower, The Last City, Earth
The Guardian speaks to the Drifter after acquiring Outbreak Perfected.
The Drifter: Hey - word around the Tower is that you snuck your way into a Cryptarch vault. Took somethin' that wasn't yours. It's a strong move that the Vanguard won't like. If they find out. I dig it. Hey, do me a solid. I'm a scavenger. Live a hard life. If you make your way back into that vault - grab something for me, will ya?