Halo: Nightfall: ONI: Unit 54

ONI: Unit 54 is a Second Story of Halo: Nightfall's Episode 2: Sourced From Hell. The featurette depicts a transmission between Ader Haddak of Sedra Emergency Response Unit 54 and ONI scientist Noah Caloes, regarding the bioweapon dispersal method used in the terrorist attack in Sedra City on February 7, 2556.

Transcript
Cut to a transmission from Ader Haddak to Noah Caloes.


 * Ader Haddak: "Agent Caloes, I'm sending you my findings from the event on Sedra on February 7, 2556."

Cut to a transmission from Noah Caloes to Ader Haddak.


 * Noah Caloes: "Looking at the data you sent us, we're not dealing with a virus, a *unknown*, or anything conventionally infectious."

Cut to a transmission from Ader Haddak to Noah Caloes.


 * Ader Haddak: "We need to understand what we're dealing with."

''Cut to a transmission from Noah Caloes to Ader Haddak. An overlapping scan reveals that Caloes' confidence is dropping and he is becoming deceptive. A background check is initiated.''


 * Noah Caloes: "The half-life is so short that it's so hard to get any initial data."

Cut to a transmission from Ader Haddak to Noah Caloes.


 * Ader Haddak: "We've had luck with one piece of infected organic matter in cryostasis."

Cut to a transmission from Noah Caloes to Ader Haddak.


 * Noah Caloes: "What we're dealing with is a new substance."

Cut to a transmission from Ader Haddak to Noah Caloes.


 * Ader Haddak: "Every time we open a window in the stasis to exam it, we lose a little more."

''Cut to a transmission from Noah Caloes to Ader Haddak. As Caloes continues to talk about the Halo Array, a breach of contract is recognized by the transmission software for revealing sensitive intel. He is eventually cut off when the transmission is encrypted and sent to ONI agent Fixer.''


 * Noah Caloes: "Affects the blood cells' ability to divide itself normally, and before you know it, your heart is pumping poison all over your body. We've only every heard of anything like this once before. More or less, it's how the Halo Array worked. It spread out a field effect at a galactic scale that was able to target specific categories of carbon-based life. So now there's a remote, but terrifying, possibility that the Covenant have reversed-engineered the dispersal technique. And it kills nothing but hum—"

Cut to a transmission from Ader Haddak to Noah Caloes.


 * Ader Haddak: "Ader Haddak, Sedran Emergency Response Unit 54."

Haddak and Caloes are both added to a list of subjects and the transmissions end.