Raining flares

0 spawn
{
    private ['_fClasses', '_radius'];
    _fClasses = ["F_20mm_Green", "F_20mm_Red", "F_20mm_Yellow"];
    _radius = 100;
    MDRUN = true;
    waitUntil
    {
        if ((diag_frameno % 2) == 0) then
        {
            private ['_pPos', '_x', '_y', '_cName', '_flare'];
            _pPos = getPosATL player;
            _x = (_pPos select 0);
            _y = (_pPos select 1);
            _cName = _fClasses select (random floor ((count _fClasses) - 1));
            _flare = createVehicle [_cName, [_x, _y, 150], [], _radius, "CAN_COLLIDE"];
            _flare setVelocity [0, 0, -9.8];
        };

        !MDRUN
    };
};