How to increase stash size in DMZ in Modern Warfare 4

In Call of Duty: Modern Warfare 4's DMZ mode, a frequent challenge players face is maximizing their stash space, which is limited to 40 items and 12 weapons at the start. Thankfully, the game allows for upgrades to expand this capacity. Initially, players can access the 3D printer at level two, unlocking the first stages of both the stash item and weapon upgrades.

To access these upgrades, players must gather cash, rigid synthetics, and electronic sensors. Cash is easily obtained by selling exiled items and completing objectives, while rigid synthetics are abundant throughout the game. Electronic sensors, however, are scarce and require a detailed guide to locate.

Completing the item upgrade grants an additional 18 slots to the stash, reducing the need to prioritize gear and materials during each return to the Forward Operating Base (FOB). After upgrading once, a second tier becomes available, costing 50,000 cash and requiring detonators, nylon cloth, and power regulators. Prioritizing the initial upgrade is crucial, as it significantly enhances the stash's storage capacity, making gear management much more efficient.