From Halopedia, the Halo wiki
This article is about the Tyumen depicted in the Halo 3 map Icebox. For the city on New Harmony, see Tyumen.
Government and society
Service organizations and utilities
Tyumen, along with the map Icebox, were to originally appear in Halo Online prior to its cancellation. Tyumen was finally made canon through the map's release during Season 8: Mythic of Halo: The Master Chief Collection.
It is unspecified which Tyumen this is, as it could either be the Tyumen on New Harmony, or the real life Tyumen in Russia if it still exists in the 26th century. Alternatively, it could also be a Tyumen from a unspecified colony.
List of appearances