Vaughn controls the private ultimatum's exposure, wakes Drummer personally, and carries out the Pallas-Tycho evacuation with gray-faced obedience.
Vaughn wakes Camina Drummer after signal intelligence authenticates Trejo's private tightbeam. He ensures that only the duty communications officer, his assistant, himself, and Drummer have seen it, limiting the time before the ultimatum inevitably reaches public networks. At her order he wakes coalition liaison Lafflin and connects Admiral Hu for emergency consultation.
When Drummer chooses evacuation, Vaughn receives the order to empty Pallas's structures, detach Tycho Station, and send every available ship away at maximum burn. His craggy face turns gray and his eyes deaden, but he neither argues nor hesitates. He braces himself and leaves to translate her devastating strategic choice into thousands of immediate civilian movements.
An older man with a deeply lined, craggy face and a whiskey voice, wearing a formal jacket modeled on an old vacuum suit; the evacuation order leaves his face gray and eyes hollow.
Vaughn is Drummer's trusted executive instrument, protecting sensitive information and converting her most painful decisions into orderly action.