In this guide, you will learn how to upgrade weapons in Zombies Mode Modern Warfare 3 using the quickest way.
- First, open the map to locate specific areas marked with a distinctive icon that represents Pack-A-Punch.
- Then visit one of these locations on the map to access the Pack-A-Punch machine.
- You have to spend 5,000 currency to upgrade weapons and enhance damage and ammo capacity, making your MCW look cooler with a new skin.
- Returning to the same location allows you to time travel to higher threat zones for increased challenges and better upgrades.
- In higher threat zones, you can upgrade your equipment again.
Focus on enhancing your secondary weapon to increase its damage, making it stronger overall.
