The Fuhrer has been defeated, but the dead still rise. Infiltrate a mysterious laboratory, tear your way through zombified researchers and solve the mystery of the zombie scourge! Terror Lab is the first mission in Hell Cult, a new hair-raising three-part Zombie Army 4: Dead War campaign! Explore a brand-new location in this terrifying mission in co-op or single player, complete with new collectables! The Fuhrer may be gone, but the dead war rages on!