Hello!
From the homepage, press play, then Arena. It will default to death match, and in the top right hand corner is the option to swap the map and mode. If the buttons are not showing, try adjusting the screen relocation within the settings of the game. You can adjust the amount of bots, their names, properties like health and weapons and more on the right hand side, and press play on the left side!
Let me know if this works!
ProjectTetraDev