From Halopedia, the Halo wiki
Ghost Flight was a flight of four Razor-class prowlers attached to the UNSC Navy's Task Force Yama. Then-Lieutenant Commander Hector Nyeto commanded the flight from the UNSC Ghost Song, which served as his flagship. In 2526, Ghost Flight participated in Operation: SILENT STORM until Nyeto revealed his allegiance to the insurrectionist cause and defected, bringing three of the prowlers along with him.
After rising through the ranks of Office of Naval Intelligence's Prowler Corps, the insurrectionist spy Hector Nyeto slowly and quietly replaced the crew of all four of Ghost Flight's prowlers with men and women sympathetic to the rebel cause. It is estimated that Nyeto accomplished this over the course of many years, or even decades.
At least one of these prowlers participated in the SPARTAN-IIs' mission to board and capture Radiant Arrow, a Covenant frigate in orbit over Netherop. During the operation, one of Nyeto's sensor operators deliberately transmitted over an open communications channel in an effort to get the three teams of Spartans killed. While this ultimately resulted in the self-destruction of the frigate, each of the Spartans managed to escape.
After the initiation of Operation: SILENT STORM, Ghost Flight traveled with the rest of Task Force Yama to Seoba with the intent of capturing an abandoned ice quarry to use it as a staging ground for their assault on the approaching Covenant fleet. Upon arriving at the icy moon, Colonel Marmon Crowther of the 21st Space Assault Battalion decided to have the ODSTs and Spartans practice mass deployment from these four prowlers. However, Operation: ICE DANCE soon erupted into an actual battlefield when insurrectionists were discovered to be entrenched in the quarry. Ghost Flight provided air support and dropped off additional ODSTs throughout the course of the battle, until the prowlers began to run low on ordinance and the UNSC Ghost Star was shot down by the rebels. At this point, Nyeto ordered his remaining three ships to pull back.
List of appearances