F.P.S survive in Vorkuta war

this modpack is about a war what happened in your russian city called vorkuta and the country who attacked your russian city vorkuta was aiming at a unkown factory. when they bombed it some unknown experiment gas was released to the city. it was a infection every one is now a infected hostile zombie. but dont forget your biggest enemy isn't the zombies its humans soldiers bandits survivors you name it... try to survive this and be the strongest and safest