World War Z - Proving Grounds Update Trailer | PS4

. The Proving Grounds Update rounds out the first season of free content for World War Z, which included the new “The Undead Sea” Tokyo mission and the six-skulls extreme difficulty setting for all chapters. Season two, coming soon, will add new PvE maps, survival mode, special zombie, gameplay updates, and even more skins. Rated Mature: Blood and Gore, Intense Violence, Strong Language