I've installed almost a dozen solar powered network backhaul repeater sites in Alaska for research projects. Since we go in by helicopter we have a limited time and weight available to us. So we use armored cat5 instead of pulling conduit. You can get outdoor cat5e and armored fiber from blackbox.

My grandfather worked as a launch operations engineer for an air force contractor in the 60s and 70s. They did have a "Pad Cat" living on the launch pad to control mice. He said it was the only effective thing. And yes, someone had the specific task of finding the cat and taking him into the bunk house when they cleared the pad for launches.