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Unlock upgrades in Black Ops 6 Zombies guide

Authore: HenryUpdate:Sep 24,2025

Jingle Hells in Black Ops 6 offers more than seasonal aesthetics. Beyond redecorating Liberty Falls with holiday cheer, this mode fundamentally alters weapon progression mechanics. Here's your guide to weapon upgrades and Ammo Mods in this festive Black Ops 6 Zombies variant.

How To Upgrade Your Weapon in Jingle Hells

Weapon Upgrade Mechanics in Jingle Hells Mode

Standard Black Ops 6 Zombies progression relies on Salvage upgrades via Arsenal Machines, but Jingle Hells removes this option entirely. Instead, players must locate Aether Tools - consumable items that instantly upgrade weapon rarity based on their color tier:

  • Green: Uncommon
  • Blue: Rare
  • Purple: Legendary

Three primary methods exist for finding these valuable upgrades:

  • Church Spire Easter Egg: Target the zombie head atop the church spire with grenades to trigger falling loot-bearing zombies
  • Bank Vault: Spend Loot Keys on safety deposit boxes with random reward chances
  • S.A.M. Trials: Complete these challenges at higher tiers for better rewards

Alternative upgrade options include Hidden Power GobbleGum (instant Legendary) or waiting for Mystery Box/Wall Buy weapons to naturally improve across rounds.

Obtaining Ammo Mods

The festive mode currently limits players to Cryo Freeze Ammo Mods, which appear as equippable consumables. Holiday Presents serve as the primary source:

  • Random enemy drops
  • Special Naughty/Nice powerup outcomes
  • S.A.M. Machine spawn clusters

Related: Complete Guide to Bastard Sword Elemental Upgrades in Citadelle des Morts

Equipment and Support Acquisition

Support Item Availability in Holiday Mode

With Workbenches removed along with Arsenal Machines, players must adapt their loot strategies:

  • Standard Equipment: Enemy drops/Presents
  • Support Items: Elite enemy loot/S.A.M. Trial rewards
  • Vault Contents: Deposit box surprises

Call of Duty: Black Ops 6 and Warzone are currently available across PlayStation, Xbox, and PC platforms.