How to get high-tenacity fibers in DMZ in Modern Warfare 4

High-tenacity fibers in Call of Duty: Modern Warfare 4's DMZ mode are one of the most sought-after crafting materials, especially when you're still learning the ropes of the game, because they're used for a number of upgrades around your FOB. The most important of these is the uncommon ingredient printing upgrade, as that allows you to manufacture higher-rarity crafting materials.