Map select
When running the game, use the following command line parameter: -startmap [map name]
地图选择：游戏中使用下列命令参数即可：-startmap [地图名称]
Show frame rate
Use the following command line parameter: -fps
显示帧率：使用命令：-fps
Turn off fog
Use the following command line parameter: -nofog
关掉迷雾：
使用命令：-nofog
Turn off sound
Use the following command line parameter: -nosound
关掉声音：使用命令：-nosound
