Humans are the most diverse species. They can be anything. Real world examples of human fighter heros go back to the dawn of civilazationwith Gilgamesh and Sampson.  Roland and William Marshall from the Middle Ages are great knights of chivalry along with the concept of the warrior -poetfound in the code of the Samurai.  Shaka Zula and Techumsah were great warriors that lead there peoples fight to hold their land against outside forces. Great Ranger archetypes would be Aragorn from The Lord of the Rings or Robin Hood.  Great Rangers from American history and legend would be the Apache leader Geronimo,Robert Rogers of Roger's Rangers in the French and Indian War or Natty Bumpbo from Last of the Mohicans and other tales.