google seach的,自己睇睇
As for just rcon, it's the same as most source games. You can login to rcon by typing:
rcon_password "your rcon password here"
Then you can change the map by typing something like:
rcon changelevel l4d_vs_farm01_hilltop
Then you can restart the round by typing:
rcon mp_restartgame 1
You can kick:
rcon kick "name here"
總之係console內打 rcon_password "your rcon password here"
再係你想打的command之前加個"rcon "上去就得了
密技甚麼的我不清楚,自已上網找吧