IRTO Siberia/Main Facility/D2 Building

The D2 Building is an above-ground building that forms part of the Main Facility of the IRTO Siberia complex. It is connected to the west side of the Research Hub via a sky bridge. It contained two main sections: the Weapons Development Labs, which featured a test firing range, and the RF Test Labs. The building was historically used for weapons development, but was mothballed after the program was shut down. All access to the building is prohibited, and it is considered one of the few areas that still remain classified by the Russian government.