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During the course of Bad Neighbors the Guardian finds that a conflict between the Hive and Fallen on Titan, who had arrived after following the survivors of the City to Titan, has escalated and the Fallen are now going to build a bomb to kill the Hive. However the bomb will cause too much damage, risking the structural integrity of the entire Rig, forcing the player to intervene and intercept the Fallen in the process of creating the bomb. Ghost then decides however that this bomb could still be useful if used away from the Rig, against the Hive nests at Tidal Anchor. Ghost uses the Fallen's bomb components to craft his own bomb, which the player then uses to destroy a Hive "Resonator" device, luring out the Hive in Tidal Anchor responsible for its construction, and killing them all.
Ghost: So who do we fight?
Sloane: Fallen first. They're using fuel cells to build an explosive countermeasure to the Hive. Sloppy stuff. It'll blow us all sky high.
Ghost: We've got their fuel cells! They won't be blowing up anything today. Hmm, I see what they were doing. Volatile catenary, percussion cap...
Sloane: Good. Sending you coordinates to the Hive.
Ghost: Right, coordinates, Hive... if we tweak this... and rejigger that... it should work
Sloane: What should work?
Ghost: We'll call it a Hive Disruptor. Let's go disrupt some Hive.
Ghost: Which way, Sloane?
Sloane: Up. You're looking for the top of a tower, the central platform.
Sloane: Eliminate the Wizards, destroy their project, and stabilize this Rig
Sloane: What was that? I could feel the shaking from here. I said stabilize, not sink! What did you do?
Ghost: Tell you later.
Ghost: We got 'em, Sloane.
Sloane: How bad's the damage?
Ghost: Minimal. Nothing you crews can't fix in a day or two. Really, it looks as good as new. More importantly, the Resonantor's gone.
Sloane: (sigh) I'll take your word for it.