A general rule of thumb to keep in mind when creating a character: if you create a character with a gun, he or she will not be able to double-jump or be able to use the Force, but that character will acquire the Grappling Hook. On the other hand, if your character is created with a lightsaber, that character will be able to double-jump and otherwise use the Force, but will not be able to use the Grappling Hook.