Quote Originally Posted by ChameleonMS View Post
You do not become a warrior until you complete the quest Pride and Duty. Additionally, you must level a Gladiator to level 15 to unlock this quest.
They are rare but I have seen a level 50 Marauder.
Not Marauder, but I regularly solo as a lvl 50 Thaumaturge. It's so handy having the CNJ abilities on my toolbar. And yes, I do have Black Mage, which I will take to parties, of course.