I am going to try to make a ranking system based on certain leagues (bronze, gold, diamond) you start at the bottom of bronze and once you are number one in bronze, you rank up to gold and so forth. I am just having a hard time approaching this for one reason. how could I get the number of people who are in the leagues? Because this is a global based ranking, not just for one server, I need to get the grand total amount of people in each league and their rank. I have no clue where to start with that. Help much appreciated.
Use data store and save each user's userid in it.
http://wiki.roblox.com/index.php?title=Data_store