Cut Halo 4 vehicles

During the development of Halo 4, various vehicles were cut from the final game release.

Revenant
At some point in the game's development, an updated and redesigned iteration of the Type-48 Revenant, which first debuted in Halo: Reach, was intended for inclusion in the game. The vehicle was concepted by 343 Industries concept artist Glenn Israel and high-poly modelled and textured by hard surface artist Can Tuncer, and implemented in the Halo 4 tags build. The vehicle can be seen spawned on several cut maps including  and.

With the release of Halo 4 on PC as part of the Master Chief Collection, the Revenant was added to the game's files and can be spawned via modding.

Mantis booster variant
Early concept art for the Mantis showcases two booster-like jets on the mech's shoulders. These boosters can be viewed in-game, via the Mantis holograms on the Dominion vehicle spawn pads.