TrueCombat 1.3 is a Quake 3 mod similar to Urban Terror but with a higher degree of realism. The mod also works with Open Arena. Using Open Arena and the TrueCombat 1.3 mod files, I have made a self contained application bundle using Automator that launches directly into the TrueCombat 1.3 mod. The application bundle needs to be placed in the /Applications folder to function properly given the limitations of the shell script run via the Automator application bundle. To set custom screen resolution, launch the in game console using the ~ key. Then use the following commands: /r_customwidth XXXX /r_customheight XXXX /r_mode -1 BTW, I don't continually host a game server so it is possible that you may have to start your own. This game supports bots and missions for most of the default maps.