The Vanguard Ranger is not a Hybrid of Fighter and Druid. He has incredible martial prowess, coupled with great Ranged attacks. From close or far range he is deadly. While he may live in the wild, he does not commune with nature the way a Druid would. Instead he has gained abilities that allow him to track and to hunt using stealth. The Ranger does gain spells, which allow him to augment his performance, as well as increase his allies' capabilities.
He's a fighter, who lives in and utilizes nature, but is not the tree-hugger many games have turned him into lately. While he has ranged attacks, he is not purely a ranged fighter.