How to get comms modules in DMZ in Modern Warfare 4

Comms modules in DMZ in Call of Duty: Modern Warfare 4 are an epic-tier crafting ingredient that is hard to find without knowing where to look. They are needed to unlock uncommon ingredient printing alongside high-tenacity fibers, to increase weapon storage, and for equipment such as fulton drop markers. Once epic ingredient printing is unlocked you can craft more, but that requires acquiring even rarer ingredients first.