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CoD MW3 Zombies: How to Get the Cryo Freeze Ammo Mod

You'll need the Cryo Freeze Mod for a daily challenge in MWZ.

Call of Duty Modern Warfare 3 Zombies has plenty of Ammo Mods to boost your gameplay experience. You’ll need them to truly progress in the game mode. In this guide, I’ll go into how to get the Cryo Freeze Ammo Mod in MWZ.

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How to Get the Cryo Freeze Ammo Mod in MWZ

Ammo is a crucial resource in CoD MW3 Zombie, so upgrading your ammo will make it go even further. The Cryo Freeze Ammo Mod will apply Cryo Freeze to your currently equipped weapon, allowing you to randomly slow and freeze a damaged enemy. This is especially useful when hordes are flooding your way, which I know happens more often than not in MWZ. Here’s how to get it.

  • Aether Cache
    • Obtained by clearing Aether Nests, or randomly around the map.
  • Reward Rifts
    • Obtained by completing contracts.
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I’ve found the most consistent way to obtain Ammo Mods is through Reward Rifts, since the contracts are readily available for you across the map. Of course, since the loot is randomized, it might take some time to find the mod. However, I’ve managed to acquire Cryo Freeze from the Tier 1 map zone. So you don’t need to progress through the map Tiers to find it. Additionally, you’ll need the Mod for the Freezer Burn challenge, so I recommend you pick it up if you come across it.

Once you’ve picked it up, you’ll want to make sure you’ve got the weapon of your choice equipped before using it in your Rucksack. Additionally, the Mod will become permanently available if you complete a successful exfil with it equipped.

That’s how to get the Cryo Freeze Ammo Mod in Call of Duty: Modern Warfare 3 Zombies. Check out our MW3 guides hub for tips like the best loadouts and how to level up fast.


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Maddison Ahlbrand
Maddison started her gamer journey traversing the lands of Runescape and World of Warcraft. These days, she can be found playing just about anything, but a lot of her free time is spent playing FPS games like Fortnite, CoD and Valorant. She's been with GameSkinny since February 2023, and has a BA in Art History.