1. A system for implementing a retrotraverse behavior for a remote vehicle configured to communicate with an operator control unit when a control signal from operator control unit is not received, the system comprising: a control system on the remote vehicle including a memory and a processor, the processor being configured to run the retrotraverse behavior, the retrotraverse behavior including or in communication with a waypoint routine that maintains a list of time stamped waypoints stored in the memory and separated by at least a minimum difference in time and distance, wherein one of the waypoint routine and the retrotraverse behavior generates a return path interconnecting previously-traversed waypoints in reverse order of timestamps, and wherein the remote vehicle navigates successively to the next previous time-stamped waypoint in the list until a control signal is received from the operator control unit.