Exploits and implants get all the press, but infrastructure is the bedrock for APT actor operations. It’s the first thing created, the last thing destroyed, and the costliest to have caught, exposed, or otherwise burned. Akin to logistics in traditional military operations, infrastructure is critical: as Admiral H.G. Rickover (USN) said: “Bitter experience in war has taught the maxim that the art of war is the art of the logistically feasible.” Clandestine operations infrastructure possesses an extreme complexity, and this talk aims to describe and explore that complexity in detail. By examining the complexity of APT actor operations from the perspective of their infrastructure, including highlighting the complexity involved alongside a real-world example, this talk help network defenders improve their understanding of the threat landscape and perhaps give ideas for red teamers as well.