you was a zombie, hurt many. 
now your cured. the faction know as Moon Crusaders cured you. using old rockets an a makeshift moon base of landed rockets an landers. the moon crusaders are a faction using the best they got, which is mostly 1950s tech. you wake in a base in Antarctica, undead are using tanks aircraft carriers an jets an planes to attack. an are moving on Antarctica, many bases already deep in the frozen waste. the cold don't bother them. down to the skeletons. both sides ready! go