Zombie Apocalypse

In the year 2056, the sun has disappeared and everything is snowy, the seas are polluted and a zombie invasion has taken over most of the world. Everything is in ruins and there are zombies everywhere. Most people either die or become zombies. You are in a huge city in ruins, where there are different groups scattered around with different teenagers, you can be a character of them or invent one of them. The teams are: "Silver Souls" Jack Jim Freddy Valeria Anthony Poppy Tyler "Legendary Fury" Carl Jaime Candy Diego Ollie Justo Bassie "Eternal Moon" Nolan Ofellia Aiden Luna Josh Courtney "Black Crystals" Huck Lloyd Finn Gigi Edward Michelle Dennis "Until Death" Resse Gala Lily Nico Pebble Shelly Erika Cherry Koda "Without Remedy" Sabina Astro Henry Gio Alistair Nancy Proton Kei Emily "Time to Fight" Cody Vance Olivia Cyan Zoey Hallie Sap Baxter Bonnie Finley