Ok, let me explain, this is what the users see https://ipsproarcade.com/index.php?/profile/904-v0rt3x/badges/
On the left you see the ranks. For example you get the contributor badge for 250 points by default, but you can change the number of points. In Rules in your AcminCP you can set how many points you get for which action. When a content item is posted 20 points, when a comment/reply is posted 1 point and so on (you can change that too). And because every community is individual, there is no list on IPS, you see everything in your ACP anyway.
So your rank is based on all the points you get from different actions. In the past and on other forums the users climbed up in their rank only with postings. So spammers usually got a better ranking than more quiet members, even if they post better content. You can reward those by giving them more points when their post is marked as best answer, or whatever. A little bit complicated to explain, just take at the rules by yourself. Then there are the badges that can be given for anniversaries, like 500th post, 1 year membership and more.
And last but not least there are individual badges that are not given automatically, you can reward chosen members manually with whatever you want, you don't need to create rules for that.
Like already said, it's not easy to explain, especially when english is your second language, but if you have any questions feel free to ask.