Placing a preset vehicle (such as a HEMTT with a driver), Remote Controlling the vehicle, dismounting from the vehicle, and then being killed by enemy fire with the Remote Controlled unit will not automatically place the player controlling the unit back into the Zeus interface, and it must be done manually. If the entire vehicle is destroyed (a tank blowing up the HEMTT instantly with a shell), you WILL be placed back into the interface properly.
Additionally, infantry killed inside vehicles (a driver being shot out of the driver's seat, for instance) will also not kick you back to the Zeus interface. When you enter the interface again, the vehicle will also have been switched to the "Civilian" side assuming that all units inside the vehicle are dead, which may not be intended behavior, as dismounting normally switches the vehicle to the "Empty" side.