Hi Viper,
This query port must be your port number + 1. So if your game server is running on 10480, the patch will set the ServerQueryListenPort to 10481. Else the SWAT 4 in-game server list won't be able to query your game server. As the normal query port of SWAT4 is entirely broken, due to the cancellation of GameSpy its support for the game unfortunately.