Bolares
Legend
Both of those can be easily done by subclass. A martial ranger would need to be it's own class, and that's the kind of niche thing (for a class) that WotC seems to not be willing to make.The Echo Knight and Soulknife would like a word.
Seriously there are a lot of niche but cool options in 5e. They just make them subclasses. And there's already in practice one martial ranger in the Scout. There should possibly one for the fighter as well.
About the scout, it's not really a martial ranger, it's a wilderness rogue. They are similar, but not really the same thing.