When dropping into a DMZ match of Call of Duty: Warzone 2.0, there are special canisters you might find sticking out of the ground called Hidden Caches that could contain some of the best loot. These containers are rare, with sometimes only a few seen on each of the three available maps. However, those that search relentlessly for a Cache can eventually unlock new weapons, items for Faction missions, or even killstreaks.