"Roman" SPAAG for VDV on modified 7-roller BMD-3 chassis, was under development in 90s and prototype was shown in 1995. Roman was basically lighter version of Tunguska with less missiles and cannons.
Ukrainian expert Oleg Ponomar about recent events.
Full REEEEE mode, lol.
Anyway, Russian position could be "let them fight" and if Saudis will get schwacked in the process - collect even more profit from increased oil prices. And destroy Ukraine later.