Third update (February update)

Mausoleum interior
Suburban area
Elite cottage
Skybox changed
Optimized slightly

None Provided

Second update:
The building of the Ministry of Internal Affairs and the KGB R.S.F.S.R. moved to the building of the Council of Ministers.
Added a catacomb.
Added loudspeaker models (Notification system)
4 trees have been added behind the mausoleum.
Several trees have been added on the sides.
In the same place of the Interior Ministry building, there is a factory

None Provided

Initial addon creation.