Mastering the Harbinger of Doom Dark Ops Challenge in Call of Duty: Black Ops 6 Zombies

Call of Duty’s killstreak system offers some of the most satisfying gameplay moments. In Black Ops 6 Zombies, killstreaks become powerful Support items, letting you unleash devastating attacks on massive zombie hordes. The Dark Ops Challenge "Harbinger of Doom" tasks players with achieving 100 zombie kills using a single killstreak. This guide outlines the optimal strategies for success.

Optimal Maps and Game Modes

Black Ops 6 Zombies features Standard, Directed, and Jingle Hells modes. While Directed mode is popular for camo challenges due to easier enemy encounters, its smaller hordes make "Harbinger of Doom" significantly more difficult. Therefore, Standard mode is the recommended choice.

For maximum efficiency, select maps with ample open space to maximize your killstreak's impact. Ideal locations include the Shipwreck on Terminus and the Liberty Falls spawn area near Pump & Pay. These open areas allow for efficient targeting of large zombie groups.

The Best Support Items

To conquer the "Harbinger of Doom" challenge, choose from Black Ops 6's most potent Support items:

• Chopper Gunner: Rains down devastating minigun fire from above.
• Mutant Injection: Transforms the player into a powerful Mangler for a limited time.

Both offer invulnerability during activation and inflict substantial damage. High-ranking players can craft these at a workbench for 2,500 Salvage. Alternatively, they may drop from special/elite enemies, S.A.M. Trials, or Loot Keys on Terminus and Liberty Falls (though this relies on RNG). Crafting beforehand is highly recommended.

Strategic Approaches

Begin the challenge in Rounds 31-40, when larger hordes spawn. Activating the Rampage Inducer further boosts zombie numbers and speed, creating ideal conditions.

Mutant Injection Strategy: Lure a massive horde into a confined area with multiple spawn points (e.g., Rec Yard on Terminus, Backlot Parking on Liberty Falls, or the Oubliette room on Citadelle des Morts). Activate the Mutant Injection and utilize melee attacks for maximum efficiency.

Chopper Gunner Strategy: Gather a large horde in an open area (e.g., Shipwreck on Terminus, Backlot Parking on Liberty Falls, or the Town Square spawn area on Citadelle des Morts). Call in the Chopper Gunner and unleash its aerial firepower.

Conclusion

By following these strategies and choosing the right map and Support item, you'll significantly increase your chances of completing the Harbinger of Doom Dark Ops Challenge in Call of Duty: Black Ops 6 Zombies.