Just found something interesting out while playing as my Titan We know that each class has 2 sub classes with the later of the classes requiring you to be level 15 However should you switch player while already achieving level 15 on a different guy, it not longer applies For example Daniel is a level 20 Voidwalker Warlock If he started a character as a Hunter, he could start straight away as the Hunter as in class "Bladedancer" Pretty cool if you want to make a new build