I woudnt say the Rev3 was missing parts as that denotes a QC issue!! It doesnt come with certain parts that is true. But they arent missing!! YOu need two turnbuckles for the steering and some ball-cups and motor screws. I think thats all.
Oh and some damper fluid and shock oil. I guess the idea is anyone buying a Rev3 is a pretty hard core racer and owns most of that stuff anyways. The only hard parts to find on the kit are the Losi medium, light and heavy hydra fluid for the dampners.
Ray