Zavala: The assault on Phobos was the opening salvo in this war. We believe now it was a trial, the first full-scale use of Taken power in this system. The Warlocks see it as a place of power. The Echo must as well.

Aerodrome, Fleetbase Korus, Phobos

Zavala: I see this Echo as a strategist. It moved to capture the Black Garden, now a push on Phobos. End it, Guardian.

Guardian enters the Cabal base

Ghost: We're back. This war against the Taken began here. Let's end it here.

Guardian enters Skyburners Keep

Ghost: Guardian, this room is crawling with blight. And I'm detecting poison gas in the vents. Oh, and the Cabal flame jets are primed to fire. So... yes. You've got this...you...

Guardian defeats Echo of Oryx

Zavala: Your first mission to Phobos ended with a flight for freedom. Now, you leave that moon with a decisive victory over the Taken.