15P080M RS-40 "Druzhinnik" (unoficially called Sarmat-2 and Satan-III) is Russian strategic system with 15Zh80 nuclear intercontinental ballistic missile as main part, basing in underground missile facilities. It has 47 metres height and 5 metres in diameter. RS-40, first launched in 2041, is successor of original Sarmat RS-28, developed in 2019. It has 12 15Yu71M Avangard-M MIRV warheads, every with blast yield of 1.5 megaton. Warheads can reach every place on the planet by speed of 22 Machs. This missile was designed to become new universal ICBM of Russian Strategic Missile Forces, replacing all older ones. Due to its high importance the huge system for its maintenance and transporting was developed. The one of the best innovations is high mobility of the missile across different facilities.
Look for Sarmat-2 infrastucture in separate post. There are full system of transporting and launching ICBM. (Will be completed a bit later).

Note: schematic requires World Edit mod. It also can be opened by Litematica.