Background Help.

Well I've asked this before but people aren't able to give me a solution, so I'm asking again hoping that it will be solved this time. The problem I'm having is simple, I have an old system, where players can look at the skins, OnRequestClass and well there is no vehicles in the background and all that, but after when I spawned, and I also have a /changeteam command, which makes the player go back to Class Section, and when they are browsing the skin which I spawned earlier, they will be able to see "Cars" and "Players" running about in the background which Firstly, when you just connected, they won't be any.....

Well of course I tried SetPlayerVirtualWorld. Well, OnPlayerRequestClass, the virtual world is set to 1. Then at OnPlayerSpawn its set to 0. So guys any idea how to remove the background cars and players running about when I changeteam?

I'm tried many variations but to no appeal. Such as OnPlayerConnect and all that. Including through the command, /changeteam setting the virtual world differently. Still same result. I need a breakthrough for this. +REP for those who help me crack this case. Thanks.