I've been an R/C modeler for almost 40 years, and the advances in technology within the hobby amaze and trouble me. There are all kinds of inexpensive "telemetry" modules out there that are intended to control drones and helicopters, as well as aid competitions involving cross-country flying events for large scale R/C sailplanes.
There are programmable auto-pilots available for a couple of hundred dollars. These devices will interface with a laptop that makes it possible to fly a model airplane/helicopter/drone/flying IED completely hands off to any destination you can program into its GPS system, carrying as much payload as its airfoils will support.
There are live POV systems that allow an R/C pilot on the ground to see the view out the front windscreen of the model. Simple as putting a GoPro cam in the fuse, then hooking it up to the right couple of hundred worth of miniature modules.
Scary stuff in the wrong hands.