There are numerous parameters you can choose when creating or setting a game. First, you need to understand the difference between creating and setting a game.

To create or set a game

Create Game in the Games List to display the Team Lobby, and then click Game Settings.>

Join Game to display the Team Lobby, and then click Game Settings.>

Join to display the Team Lobby, make sure you are the first person to "join" this game, and then click Game Settings.>

appears.>

Mission Name box, change the name of the game if you want.>

Password box.>

select the win condition or combination of conditions you want for your game.>

select numerous specifics to further refine the game style you want.>

Accept Changes.>