Saw this posted by dak and as perfectly writen just gave me idea that should have this on a pinned topic. So its simple to see what groups are so no need for topics/pm's etc about this -.-

Newbie = rank that a member starts off in when they join the forum
Loyal = rank that mickey manually moves a person into once they have a certain number of decent posts and are as the name suggests, 'loyal'.
Media Center = rank that is given to members who help keep the site up and running due to their donation. Accounts have a few nice perks such as more downloads, larger inbox, bonus in army system and various other things.
Mini Moderator = a moderator with basic moderating powers. Mickey selects these personally.
Super Moderator = a moderator with a few extra powers then mini-mods. Mickey selects these personally.
Mini Admin = a moderator with all super moderating powers plus access to the admin-cp. Mickey selects these personally.
Admin = webmaster of this site (aka mickey). Nobody but him will be this rank.