Spawning in a specified location

Hi Everyone I've asked this before in a different question but I have updated my code and I am going to use this code in order to handle the spawning only thing is I need some help in how to set up the spawning when I button is pressed.

Could someone please help me with this?

Here is the code I am using.

 GUI.BeginGroup (Rect (Screen.width/2-300, Screen.height/2-200, 600, 500));
 GUI.Box (Rect (0,0,400,200), "Game lobby");
 

 var pProtected="no";</br>
 if(serverPasswordProtected){</br>
     pProtected="yes";</br>
 }
 GUI.Label (Rect (110,20,150,20), "Password protected: ");
 GUI.Label (Rect (250,20,100,100), pProtected);
 
 GUI.Label (Rect (110,40,150,20), "Server title: ");
 GUI.Label (Rect (250,40,100,100), serverTitle);

 GUI.Label (Rect (110, 60, 150, 20), "GameType Selected: ");
 GUI.Label (Rect (250, 60, 100, 100), serverGameTypeSelected);
 
 if (serverGameTypeSelected != "DM")
 {
     GUI.Label (Rect (110, 120, 150, 20), "Choose Team: ");
     //chooseTeamInt = GUI.Toolbar ( Rect (250, 120, 100, 20), chooseTeamInt, chooseTeamNames);
     
     PlayerPrefs.SetString("playerTeam","");
    GUI.Button(Rect(200,120,80,20),"Red");
    HostLaunchGame();
    
     PlayerPrefs.SetString("playerTeam", "");
     GUI.Button(Rect(280,120,80,20),"Blue");
    
       
 }
 GUI.Label (Rect (110,80,150,20), "Players: ");
 GUI.Label (Rect (250,80,100,100), currentPlayerCount+"/"+serverMaxPlayers);
 
 GUI.Label (Rect (110,100,150,20), "Current players: ");
 GUI.Label (Rect (250,100,100,300), players);

// GUI.Label (Rect (250, 330, 150, 20), "Choose Player");

/* if(Network.isServer){
if(GUI.Button (Rect (110,140,100,20), "Start the game")){
HostLaunchGame();
} }else{ GUI.Label (Rect (110,140,100,40), "Waiting for server..");
}

*/ GUI.EndGroup();
}

}

var lastRegTime : float = -60;
function Update(){
if(Network.isServer && lastRegTime lastRegTime=Time.time;
MasterServer.RegisterHost(gameName,hostSetting_title, "No description");
}
} function HostLaunchGame(){
if(!Network.isServer)
{
RedSpawnPoints = GameObject.FindGameObjectsWithTag("RedSpawnPoints");
return;
}
}