I love that we can run challenge mode as much as we want and always get the credits for it! Put in the work, get the GUARANTEED reward. 30 credits(still find myself calling them marks!) and an exotic armor piece. Plus several legendaries, unless it's the helicopter mission, then it's a bunch of legendaries(on hard, more when it's challenge im sure, especially with the increase challenge drop rates in tomorrow's patch!) Not looking forward to that challenge mode mission! Jesus!