Navigating the undead-infested map of Urzikstan in Call of Duty: Modern Warfare 3 Zombies requires strategic resource management and powerful defensive options. Among the most valuable items players can loot during deployment are Ammo Mod Circuit Boards, which grant automated weaponry specialized elemental damage capabilities. Understanding where to find these rare components and how to deploy them effectively can turn the tide in high-threat zones.
What Are Ammo Mod Circuit Boards in MW3 Zombies
Ammo Mod Circuit Boards are specialized consumable items specifically designed to power up stationary Deadbolt Turrets scattered across Urzikstan. Unlike standard Turret Circuits that simply activate a turret, these modified variants infuse the automated weapon with specific elemental powers like Cryo Freeze, Napalm Burst, or Brain Rot. This distinction makes them essential for both crowd control and completing specific Act 1 story missions.
Where to Find Ammo Mod Circuit Boards
Finding Ammo Mod Circuit Boards relies heavily on searching high-value loot containers across different threat levels. Players can reliably locate these items inside Aether Caches found within Infested Strongholds and Aether Nests after clearing out all glowing cysts. Additionally, Mercenary Strongholds and Mercenary Camps frequently yield circuit boards inside reward caches upon completion.
Because these items do not have guaranteed fixed spawn points, players must rely on opening multiple caches during a match. Higher threat zones often increase the chance of finding rare loot, making Tier 2 and Tier 3 strongholds prime target areas. Searching through reward caches awarded from completed contracts can also provide another consistent avenue for acquiring them.
How to Use Circuit Boards on Deadbolt Turrets
To use an Ammo Mod Circuit Board, players must first locate a Deadbolt Turret marked by a turret icon on the tac-map. Once near the structure, interact with the console interface to open its inventory slot. Transfer the board directly from your rucksack into the turret slot to initiate immediate automatic firing.
Once activated, the Deadbolt Turret will automatically target and eliminate incoming hordes while applying the corresponding elemental effect. This provides temporary perimeter security, allowing players to focus on completing nearby objectives or completing exfiltration safely.
Maximizing Efficiency and Mission Progression
Using Ammo Mod Circuit Boards strategically can significantly lighten the workload during tough engagements. Placing an elemental circuit board before triggering an exfil wave or defending a contract objective guarantees constant heavy fire against nearby threats. Coordinating with teammates ensures these powerful tools are reserved for intense combat scenarios rather than wasted early in a run.
