Unlocking the Pack-a-Punch machine on Zetsubou No Shima is one of the most critical steps for surviving higher rounds on this Call of Duty: Black Ops 3 Zombies map. Located deep inside the flooded subterranean section of the main bunker, the machine is submerged underwater and completely inaccessible when you first encounter it. Players must complete a series of environmental tasks to drain the water and restore power to the altar before upgrading their weaponry.
Locating the Submerged Machine in the Bunker
To reach the Pack-a-Punch area, players must first open the path to the central bunker and restore power to the facility. Once inside, head down the flooded stairs into the lower level where the submerged machine sits behind locked grates. This underwater chamber serves as the focal hub for draining the water and granting access to weapon upgrades.
Navigating the flooded corridors requires careful movement to avoid drowning while gathering necessary parts. Players should manage their air intake efficiently while exploring the underwater pathways leading to the main chamber. Planning your route beforehand ensures you do not take unnecessary damage while setting up the area.
Collecting the Three Mechanical Parts
Draining the chamber requires finding three distinct mechanical parts scattered around different locations on the island. The first part is located in the flooded tunnel system, resting near the bottom of the underwater cavern. The second part can be retrieved by lowering the cage in the main bunker room using the nearby control panel.
The final component requires players to navigate the spider cave and defeat the heavy spider encounters guarding the area. Once you defeat the giant spider boss, proceed through the rear exit to claim the final mechanical piece. Gathering all three components is essential before returning to the flooded Pack-a-Punch altar.
Draining the Water and Unlocking Upgrades
With all three parts in hand, return to the main bunker and place them into the slots surrounding the flooded pit. Inserting the components activates the drainage system, slowly pumping out the standing water from the chamber. Once the water level drops completely, the Pack-a-Punch machine will raise up and become operational for all players.
Activating this upgrade station allows players to significantly boost their firepower against tough Thrashers and high-round zombie hordes. Upgrading your favorite firearms essential for completing major map quests and surviving complex boss fights. Mastering this multi-step activation process makes subsequent playthroughs much smoother and far more efficient.
Maximizing Your Upgraded Weaponry
After restoring full access to the machine, spending 5,000 points enhances your primary weapon with increased damage and specialized ammo effects. Players can re-pack their weapons for additional alternative ammo types like Dead Wire or Turned to handle large crowds easily. Maintaining strong weapon capabilities ensures your team stays ahead of increasing difficulty spikes during longer matches.
For players exploring other Call of Duty Zombies maps, similar activation mechanics and puzzle steps appear in different environments. Studying these map layout processes helps improve overall strategy and team coordination across various survival challenges. Taking the time to properly set up the map early guarantees long-term success for your team.
