Black Ops Cold War’s Large-Scale 'Outbreak' Mode Shakes Up Zombies Season Two of Black Ops Cold War arrives today, with a new 6v6 multiplayer map, new weapons, more challenges to complete, and another 100-tier battle pass to grind. It also brings the most unique Zombies experience we’ve seen in a while, in the large-scale “Outbreak” Zombies mode. Advertisement Black Ops Cold War’s ongoing “Dark Aether” Zombies storyline, players step into the boots of a CIA-backed task force and research group sent to investigate mysterious global anomalies. These Dark Aether portals are gateways to another dimension—a place of evil—and they’ve spawned a whole mess of zombies and creatures to fight.