Операция Змеиный Хвост | Operation Snake Tail

During large large war with Russia and Ukraine a squadron snuck in to a nuclear processing and developments plant containing a Nuclear warhead of unspecified power. During this disruption the nuclear complications management system had become unstable due to a long peroid of neglect and mismanagement and overloaded the Uranium and produced a large amount of Corium and R/Y wiping out any living thing in a 250KM Radius. The virus continues to spread via clouds and have muted people into living undead beings. You and a group of people have been sent to clean and clear the aread of russia that was impacted by the undead most. Your only goal: Live to tell to tale which most cease to do