Black Ops 7 Zombies Ammo Mods - Complete List and Effects Explained

In Call of Duty: Black Ops 7, Treyarch has taken the iconic Zombies formula and supercharged it with new systems, features, and customization options. Among the most impactful upgrades returning from previous titles are Ammo Mods-special elemental effects that enhance your weapons with devastating power. Whether you're freezing the undead in their tracks or electrifying entire hordes, Ammo Mods are essential for survival in the Black Ops 7 Zombies experience.

 

Here's a complete breakdown of every Ammo Mod in Black Ops 7 Zombies, including their effects, Major and Minor Augments, and how to unlock them.

 

What Are Ammo Mods in Black Ops 7 Zombies?

 

Ammo Mods are elemental weapon upgrades that grant your bullets additional effects such as fire, electricity, ice, and more. They're activated during combat, triggering on-hit status effects that can slow, burn, or even charm enemies.

 

You can install Ammo Mods at the Arsenal Machine, found in locked buildings scattered throughout the map. These buildings can be opened using Salvage, and once inside, players can buy or swap Ammo Mods as long as they've reached the required level and have the necessary resources.

 

Once you've mastered them, consider training and testing builds through Call of Duty Black Ops 7 Bot Lobbies, which provide controlled, risk-free environments to optimize your loadouts and learn activation timing.

 

All Ammo Mods in BO7 Zombies

 

Below is the full list of six available Ammo Mods in Black Ops 7 Zombies, including all Major and Minor Augments.

 

1. Fire Works (Fire Damage)

 

Effect: Triggers explosive fireworks that deal area fire damage on hit.

 

Major Augments:

 

·Big Game: Can activate on elite enemies, creating a bigger explosion.

·Starburst: Fireworks explode instantly and shoot flares in every direction.

·Weeping Willow: Flares land, linger, then explode after a delay.

·Fire Wheel: Creates spinning fire wheels that deal continuous burn damage.

 

Minor Augments:

 

·Starlight: Launches more flares per activation.

·Big Bang: Flares deal increased damage to special and elite enemies.

·High Yield: Expands the explosion radius.

·Short Fuse: Reduces cooldown time.

 

2. Brain Rot (Toxic Damage)

 

Effect: Charms a zombie, turning it against its allies while spreading toxic damage.

 

Major Augments:

 

·Plague: Charms an enemy to attack others.

·Pheromone: Charms an enemy that distracts nearby undead.

·Big Game: Charms elite enemies more frequently.

·Caustic Fumes: Adds toxic damage to charmed enemies' attacks.

 

Minor Augments:

 

·Extension: Increases charm duration.

·Haste: Reduces cooldown between activations.

·Explosive: Causes charmed enemies to explode with toxic damage when Brain Rot ends.

·Super Serum: Boosts the damage output of charmed zombies.

 

3. Cryo Freeze (Frost Damage)

 

Effect: Freezes enemies solid, slowing their advance and setting up devastating combos.

 

Major Augments:

 

·Big Game: Slows elite enemies more frequently.

·Ice Cloud: Frozen enemies leave a slowing frost cloud on death.

·Frozen Stiff: Fully freezes enemies in place.

·Cold Company: May affect multiple enemies simultaneously.

 

Minor Augments:

 

·Extension: Increases freeze duration.

·Freezer Burn: Adds bonus frost damage.

·Liquid Nitrogen: Increases activation chance.

·Thermal Shock: Causes enemies to take damage when thawing.

 

4. Dead Wire (Electric Damage)

 

Effect: Electrifies enemies and chains lightning between them, stunning multiple targets.

 

Major Augments:

 

·Chain Lightning: Stuns nearby zombies when the main target is shocked.

·Big Game: Stuns elite enemies more quickly.

·Lightning Strike: Calls down a lightning bolt that stuns all nearby foes.

·Ball Lightning: Launches an electric orb that zaps surrounding enemies.

 

Minor Augments:

 

·High Voltage: Increases damage output.

·Haste: Reduces cooldown.

·Extension: Lengthens the stun duration.

·Aftershock: Allows stunned enemies to spread the effect to nearby zombies.

 

5. Napalm Burst (Fire Damage)

 

Effect: Ignites enemies, causing burning damage over time and chain explosions.

 

Major Augments:

 

·Big Game: Increases burn frequency on elites.

·Thermite: Enhances burn strength and duration.

·Firebomb: Burned enemies explode on death, spreading flames.

·Petroleum: Leaves fire pools on the ground that persist and damage enemies.

 

Minor Augments:

·Extension: Extends burn duration.

·Incendiary: Increases spread chance.

·Contact Burn: Boosts overall burn damage.

·Backdraft: Expands activation radius.

 

6. Shadow Rift (Shadow Damage)

 

Effect: Warps enemies through dark portals, creating gravitational chaos and explosive effects.

 

Major Augments:

 

·Big Game: Triggers more often on elite enemies.

·Topple Danger: Warps enemies into others, knocking and stunning them.

·Explosive Rain: Drops warped enemies from portals, causing explosive impact.

·Gravity Well: Creates a mini black hole that pulls in enemies before teleporting them away.

 

Minor Augments:

 

·Haste: Shortens cooldown.

·Targeted: Warped enemies fall onto other zombies for extra damage.

·Ammo Theorem: Teleporting enemies restores ammo.

·Supermassive: Increases blast radius and damage output.

 

Which Ammo Mod Is Best?

 

Each mod suits a different playstyle. Cryo Freeze excels in crowd control, Dead Wire is great for stunning elites, and Napalm Burst dominates clustered hordes. Shadow Rift, however, is currently the most unique-its mix of teleportation, explosions, and ammo regeneration gives it unmatched utility in chaotic fights.

 

If you're still learning the mechanics or want to fine-tune your mod combinations, you can buy CoD BO7 Bot Lobbies to practice safely. These sessions are perfect for testing Major and Minor Augments, experimenting with elemental synergies, and optimizing your kill chains without pressure from real opponents.

 

Final Thoughts

 

Ammo Mods are the beating heart of Black Ops 7 Zombies' evolving combat system. They turn ordinary weapons into apocalyptic tools of destruction and add crucial layers of strategy for both solo and co-op players. Whether you prefer the burning chaos of Napalm Burst or the eerie gravitational power of Shadow Rift, mastering Ammo Mods is essential to surviving the undead apocalypse.

 

And as the community continues to experiment, expect even more mod synergies, elemental builds, and strategies to emerge-making every round of Black Ops 7 Zombies feel fresh, chaotic, and endlessly replayable.