As part of the international response team known as Requiem, you’ll infiltrate the DZ and try to survive waves of zombies through multiple rounds as you either uncover the secrets of “Die Maschine,” or exfiltrate early with your life intact (and some great rewards to boot). An abandoned WWII-era laboratory in Poland containing a massive particle collider has opened a rift to unexplainable monstrosities and animated undead forces.