I recently finished Red Dead Redemption II, and did everything, every challenge, every mission, all the events, killed all the animals I can, but it felt... empty. A man as good as Arthur Morgan needs a proper send off, as the true Legend of the East. I'm redoing the story of Red Dead Redemption II with the hopes of being Legend of the East as Arthur. I can instantly see one problem, the Horseman Challenge 10, taming every horse breed. How can I tame a Mustang when they are indigenous to New Austin? Any help will be appreciated.