I want players to choose what faction they are going to play as before finding a match. It seems rules are more for 'matchmaking algorithms' and not what I'm looking for. I simply want the player to pass a single string and have the server read it. I'm currently getting the player's id by calling GetInitialPlayers, but it doesn't return any additional information.
So, how would I allow users to pass in info when matchmaking, and how would the server get that information? It seems rules are not it, and I haven't been able to find much info on 'attributes.'