From Halopedia, the Halo wiki
This article is about the Halo 2: Anniversary multiplayer Heretic Banshiee. For the Halo 2 campaign Heretic Banshee, see Type-26AZ Banshee.
The Type-26BZ is a specialized "ordained" variant of the Type-26B Banshee. Followers of Sesa 'Refumee removed the cowlings from their standard Type-26B Banshees to reveal the glowing purple lights and silver metal of the craft's internal Forerunner-derived mechanisms. They also bestowed upon their Banshees golden-brown colors intended to represent their homeworld. The Type-26BZ is otherwise nearly identical to standard Type-26B Banshees. These Sangheili would do the same to some of their Type-26A Banshees, creating the Type-26AZ variant.
The Type-26BZ Banshee is the "heretic" Banshee featured in the multiplayer component of Halo 2: Anniversary - the heretic Banshee seen in the game's campaign mode is the Type-26AZ Banshee. The vehicle behaves identically in-game to the standard Banshee. The design was not given a formal designation difference until a 2015 Halo Waypoint universe entry.
List of appearances