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MW3 Zombies Firepower Mission Walkthrough

Pack-A-Punch upgrade your weapon and eliminate zombies.

In Call of Duty MW3 Zombies, Firepower is a Tier 1 mission you can complete to earn a few rewards. This mission revolves around eliminating zombies after leveling up your weapon through Pack-A-Punch; here's how to complete it in-game.

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Firepower MW3 Zombies mission guide

Screenshot by Pro Game Guides

Firepower is a Tier 1 mission in Call of Duty MW3 Zombies under Welcome to Operation Deadbolt Act One. Since this mission involves leveling up a weapon with Pack-A-Punch, you need to know all the methods to complete this activity. There are also a few items you can use, like Raw Aetherium Crystals, to instantly Pack-A-Punch upgrade on any weapon. The mission objectives are as follows:

  • Pack-A-Punch a weapon to Level 1.
  • Eliminate 50 Zombies with a Level 1 Pack-A-Punch Weapon.

How to Pack-A-Punch to level 1 in MW3 Zombies

Screenshot by Pro Game Guides

There are two easy methods to Pack-A-Punch any weapon to level 1 in MW3 Zombies. The first method is straightforward, as you'll just need to find a Pack-A-Punch machine and use Essence (in-game currency) to level up the weapon. This can be time-consuming, however, as you'll need to gather a lot of Essence by looting and completing contracts. Check the image above to see how a Pack-A-Punch machine looks in-game.

Screenshot by Pro Game Guides

The other method to get a Pack-A-Punch upgrade for weapons is to use Raw or Refined Aetherium Crystals. These two items can be farmed by completing contracts, capturing Aether Nests, taking over Strongholds, and other similar activities. Once you've found a Raw Aetherium Crystal, use it to Pack-A-Punch your weapon to level 1. Check the image above to see how this item looks in-game.

Related: All zombie types in MW3 – Strengths & weaknesses

Eliminate 50 Zombies with Level 1 Pack-A-Punch Weapon

After getting a Pack-A-Punch upgrade on your weapon, you'll need to eliminate 50 zombies with that gun. The easiest way to do this is to visit an Exfil Point on the map and call for the chopper. Calling for an exfil will cause tons of zombies to spawn in the area, and you can easily kill them with your upgraded weapon. You can also repeat this process by calling down the Exfil chopper to level up all your guns. I did the same with my AMR9 SMG to level it up quickly.

Firepower MW3 Zombies mission rewards

After completing the Firepower mission in MW3 Zombies, you'll be rewarded with an Uncommon Aether Tool (acquisition) and +1,500 XP. Complete this task quickly and move ahead with other missions like Road Rage, Wall Power, and Take Up Arms.

For more quality guides and useful information on Modern Warfare 3, check out All new weapons in MW3 and how to unlock here on Pro Game Guides.


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Dipanjan Dey
Dipanjan Dey started his gaming journey with Doom 2 and Contra: Legacy of War back in 1997. Naturally, he gravitated to RPGs and FPS titles like Call of Duty, Halo, and CS:GO. Dipanjan has been coverings stories and writing about video games for the past five years. For the past year, Dipanjan has been working as a Contributing Author for Pro Game Guides, covering shooter games like Fortnite, Apex Legends, and CoD!

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MW3 Zombies Firepower Mission Walkthrough

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