how to "Kick" a player from a round?
If you are talking about when a game is already in play, there is no way of kicking a player from a game.
If you are creating a game and a player that joins the group that you recognize as a "quitter" you can cancel that player and search again.
Hp
I have a list of over 300 quitters i've encountered in the few short months since joining.
I strike and your gone is my policy.