1) There isn't a public roster for ranks, other than checking each member profile. Although the memberlist shows active members.
2)Realism goes as far as structure, not really any further
3)At the moment we have no awards system
4)No, not at the moment, although as you can see it does show rank on member's posts
5)Depends which platform, I know for sure PS3 and PC are, I think Xbox could be as well
6)I need further clarification on what you mean
7)Officers are only awarded that position on merit, from good conduct, but there is an extra thing for people to read as they move higher up the CoC