Yes, I am confused.
For instance, a 3 way upb switch has a black, white, red, ground, and Yellow (traveler)
I would only have a B, W, R, G in my box.
And the R would only be from switch to switch, or lights, etc, not B W R G to box, in that case they only have a B, W, G running from circuit breaker to start of service (either light, switch, receptacle, etc)