Arby 'n' the Chief S06 E10 Cradle to Grave

"Is that the one that goes WHARBLEGURBLEH?"

Master Chief and the Arbiter, having pinned up mugshots of each member of the Chaos Theosis clan on the apartment's front door (their "hit list"), label each with their gamer tags and settle on tracking and taking out the youngest member of the clan first, Claire's killer -- Adam.