In Call of Duty: Black Ops 7 Zombies, mastering your weapons means more than just upgrading damage or attachments. The secret to maximizing firepower lies in Ammo Mods-special elemental upgrades that transform your bullets into devastating tools of destruction. From freezing hordes solid to electrifying entire groups, these upgrades are essential for survival in higher rounds and can dramatically change your combat strategy.

This guide breaks down every Ammo Mod in Black Ops 7 Zombies, including their Major and Minor Augments, how to unlock and install them, and how to optimize your builds using Call of Duty Black Ops 7 Bot Lobbies to perfect timing and synergy.

What Are Ammo Mods in Black Ops 7 Zombies?

Ammo Mods are elemental bullet effects that apply additional damage or crowd-control abilities when you shoot enemies. Depending on the mod you equip, your shots can ignite, freeze, electrocute, corrupt, or even warp enemies into other dimensions. These effects often trigger on-hit or after a short delay, adding a layer of tactical control to your playstyle.

Players can install or switch Ammo Mods through the Arsenal Machine, which is located in locked buildings across the map. To access these, you'll need Salvage, a resource dropped from enemies or found in supply caches. Once inside, interact with the Arsenal to purchase, upgrade, or modify your Ammo Mods.

After unlocking your preferred loadout, it's highly recommended to test your setup in controlled environments using Call of Duty Black Ops 7 Bot Lobbies. These lobbies let you practice trigger timing, cooldown management, and combination effects without the pressure of live matches-perfect for players looking to refine advanced elemental builds or simply level up weapons efficiently.

All Ammo Mods in BO7 Zombies

There are currently six Ammo Mods available in Black Ops 7 Zombies, each tied to a unique damage type. Every mod features Major and Minor Augments, allowing deep customization for both crowd control and elite damage potential.

1. Fire Works (Fire Damage)

Effect: Launches explosive fireworks that detonate on hit, dealing area fire damage to surrounding zombies.

Major Augments:

·Big Game: Allows activation on elite enemies, creating a larger explosion radius.

·Starburst: Fireworks explode instantly, sending burning flares outward.

·Weeping Willow: Flares linger briefly before detonating again for extra damage.

·Fire Wheel: Creates rotating flames that deal sustained burn damage.

Minor Augments:

·Starlight: Launches more flares per activation.

·Big Bang: Increases damage to elites and special infected.

·High Yield: Expands explosion radius.

·Short Fuse: Reduces cooldown between activations.

Fireworks are ideal for crowd control and zombie train clearing, especially when paired with rapid-fire weapons like SMGs or LMGs.

2. Brain Rot (Toxic Damage)

Effect: Infects enemies with toxic gas, charming them to fight for you while spreading damage.

Major Augments:

·Plague: Charms a single zombie to attack others.

·Pheromone: Draws nearby undead toward the charmed target.

·Big Game: Works more reliably on elites.

·Caustic Fumes: Adds poison damage to the charmed zombie's attacks.

Minor Augments:

·Extension: Extends charm duration.

·Haste: Reduces cooldown.

·Explosive: Causes charmed enemies to explode in toxic gas upon death.

·Super Serum: Boosts charmed ally damage.

Brain Rot is perfect for solo players, providing distraction and passive crowd damage-especially useful when holding choke points.

3. Cryo Freeze (Frost Damage)

Effect: Slows and freezes zombies, giving you time to reposition or land headshots.

Major Augments:

·Big Game: Applies freeze more often to elites.

·Ice Cloud: Frozen enemies emit slowing frost clouds on death.

·Frozen Stiff: Fully immobilizes enemies for several seconds.

·Cold Company: Freezes multiple targets simultaneously.

Minor Augments:

·Extension: Increases freeze duration.

·Freezer Burn: Adds bonus frost damage.

·Liquid Nitrogen: Boosts activation chance.

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

Cryo Freeze synergizes with precision-based builds and sniper loadouts, letting you line up shots or create breathing room during intense waves.

4. Dead Wire (Electric Damage)

Effect: Sends out arcs of lightning that jump between targets, stunning multiple enemies.

Major Augments:

·Chain Lightning: Spreads shocks across groups.

·Big Game: Stuns elite enemies more often.

·Lightning Strike: Summons a lightning bolt to hit all nearby foes.

·Ball Lightning: Launches an orb that continuously zaps enemies.

Minor Augments:

·High Voltage: Increases damage output.

·Haste: Shortens cooldown time.

·Extension: Extends stun duration.

·Aftershock: Causes stunned enemies to pass on the effect.

Dead Wire is one of the best utility Ammo Mods for team-based play, combining reliable stun control with consistent chain damage.

5. Napalm Burst (Fire Damage)

Effect: Ignites zombies, causing burn damage over time and chain explosions on death.

Major Augments:

·Big Game: Boosts elite burn frequency.

·Thermite: Extends burn duration and power.

·Firebomb: Causes burned zombies to explode when they die.

·Petroleum: Leaves fire pools that damage other enemies.

Minor Augments:

·Extension: Extends burn duration.

·Incendiary: Increases spread chance.

·Contact Burn: Boosts overall burn damage.

·Backdraft: Expands activation radius.

Napalm Burst excels in tight corridors and objective defense, where burn chains can wipe out entire groups in seconds.

6. Shadow Rift (Shadow Damage)

Effect: Warps enemies through dark portals, dealing gravitational and explosive shadow damage.

Major Augments:

·Big Game: Activates more often against elites.

·Topple Danger: Slams warped enemies into others.

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

·Gravity Well: Creates a mini black hole that pulls in nearby undead.

Minor Augments:

·Haste: Reduces cooldown.

·Targeted: Makes warped enemies fall on others for bonus damage.

·Ammo Theorem: Restores ammo after teleport kills.

·Supermassive: Increases radius and damage output.

Shadow Rift is a late-game powerhouse and one of the most visually stunning effects in BO7 Zombies, ideal for chaotic waves or elite boss fights.

Final Tips

Experimenting with Ammo Mods is one of the most rewarding aspects of Black Ops 7 Zombies. Whether you prefer the chaos of Napalm Burst or the precision control of Cryo Freeze, learning how to trigger effects efficiently can define your playstyle.

And if you're looking to fine-tune your setups, buy CoD Black Ops 7 Bot Lobbies to safely test combinations, level weapons faster, and perfect your elemental synergy before heading into live matches.