By purchasing Modern Warfare 3 and updating the Call of Duty HQ client, you will have access to the MW3 campaign. Simply choose the MW3 campaign logo from the menu after launching Call of Duty HQ. After using the Dead Wire Ammo Mod on your weapon, simply shoot the enemies to deal electric damage. Every once in a while, the electric effect will stun a Zombie (see image) rendering it immobile. This part of the Shocked mission is easy as you'll be able to stun 25 Zombies in no time. Related: Where to find Hellhounds in MW3 Zombies. The Lockwood 680 is arguably the strongest shotgun you can use in Call of Duty MW3 Zombies. It has a terrific fire rate, strong damage, and good enough accuracy for killing any kind of zombie. However, to get the most out of the Lockwood 680 in Zombies, you need to equip its best loadout of attachments. Doghouses can be found throughout the map whenever you're playing Zombies Mode in Call of Duty: Modern Warfare 3. This guide will detail everything
The Ray Gun Schematics is an Ultra Rare item that you can unlock in Call of Duty: Modern Warfare 3 Zombies, and is known to only spawn in one particular area.
