Just so you know.. the force implies nothing more than that they stole the name/idea from StarWar

. Regardless of rather the class is called "Force" or nothing before it, all classes can use to some extend of magic and sword skills. Force doesn't necessary means the class is especially better at magic spells since apparently... wizard isn't called a force wizard but it is the class that can use the most magic spells and rely the most on magic attacks.
Play it and you will find out. Just because there are 3 "Force" named class and 3 classes without the word "Force" doesn't mean they are two distinct group of classes; every classes are totally unique from one and other.