Scorpio MKII

The Scorpio MKII is a highly capable super-heavy launch vehicle capable of taking 200 tonnes (likely more too) to orbit.The core is 9 meters in diameter and 90 meters tall. The rocket uses 2 methalox FFSC engines per stage. The first stage also uses 2 SRBs.

Story thing:

The Scorpio MKII is an updated version of the Scorpio rocket (which is what the Son Of Scorpio rockets are based on), however the only updates are visual updates as well as control/stability improvements as it has a similar payload capability to the original.The original was the only surviving design from the cancelled Astrology Project by Z-X R&D (A company that was later aquired by Xenon Aerospace which is a sub-company of the Innovare group, the names of the other sub-companies are on the SRBs).

The Astrology Project was supposed to make different spacecraft and launch vehicles based on different star signs. The Scorpio originally had it's own lander however the plans for the lander have been lost.

The Scorpio MKII is now part of the Photonix-Innovare Lunar Sonata Project and serves as the primary launch vehicle for transfering heavier station parts to lunar orbit such as fuel modules and the 6 way habitation module.The other launch vehicles used are the PeaceLauncher, The PeaceLauncher Heavy and the PeaceLauncher Blossom. The project relies mainly on the Anubis Lunar Lander and the Blossom Space System capsules for trasport of people and cargo to the surface.

The Lunar Sonata Project is a space tourism program designed to bring ordinary people (albeit rich ones) to space and to bring down the cost of deep space exploration.