Maybe there's 3 different scales in RE, but most physicists will only admit to 2. And besides, I think you're describing the scales wrong.
First the 2 scales...
there's "normal" to large and massive. General Relativity supercedes Newtonian gravitation so one could compute planetary orbits in GR if one wanted (and indeed for Mercury, one must use GR) but newtonian works well enough, so all of this is one scale.
Then there's the subatomic scale, where QM effects dominate.
These 2 scales overlap when one considers massive small bodies. This is why black holes are of such interest. We need both GR and QM to explain how it works fully and... we don't have a consistent theory there. At least one diff I detect in FE vs RE on this type of point is that RE freely admits the existence of this shortcoming.
Some may argue that there's a 3rd scale, let's call it galactic scale, where "dark matter" would dominate. Those who would call this a 3rd scale are most probably believers in some type of MOND theory (Modified Newtonian Dynamics) to add an extra term that comes in at these scales that has too small an effect at solar system scales. However, most physicists today do not believe in MOND.