You have been randomly selected to participate in the Beta Test of our new message list page. We've rolled out this test in order to get additional feedback and error reports from a wider subset of users. We'll only display this notice once, but permanent links to disable the Beta, provide feedback, and get more information will be located at the bottom of each message list.
Team Fortress 2 was the first game that came to mind. It doesn't have the ranks, but it has the different classes. Let me mull it over some more, and get back to you. --- Lindsey Buckingham's voice is like the cherry on top of an ice cream sundae. Fantastic! Also - http://www.youtube.com/watch?v=QDVGCgklN3o&translated=1