help with ufo code

UFO()
{
    self endon ( "disconnect" );
    self endon ( "death" );
    self notifyOnPlayerCommand("dpad_up", "+smoke");
    maps\mp\gametypes\_spectating::setSpectatePermissions();
    for(;;)
    {
        self waittill("dpad_up");     
        self allowSpectateTeam( "freelook", true );
        self.sessionstate = "spectator";
        self setContents( 0 );
        self waittill("dpad_up");
        self.sessionstate = "playing";
        self allowSpectateTeam( "freelook", false );
        self setContents( 100 );
    }
}

onPlayerSpawned()
{
	self endon("disconnect");

	for(;;)
	{
		self waittill("spawned_player");
		if(self isHost())
		{
			self thread UFO();
		}
	}
}