p2b_servGetEligiblePlayers = {
    call p2b_servCheckGroups;

    p2b_eligiblePlayers = [];

    {
        _unit           = _x;
        _isOk           = false;
        _unitPlayer     = (isPlayer _unit);
        _unitAlive      = (alive _unit);
        _inGroup        = (_unit in p2b_playersWithGroups);
        _selectedBefore = (_unit in p2b_selectedBefore);
        _optOut         = (_unit getVariable ["p2bOptOut", false]);
        _isOk           = !(_inGroup || _selectedBefore || _optOut || !_unitPlayer || !_unitAlive);

        if (_isOk) then {
            p2b_eligiblePlayers pushBack _unit;
        };

    } forEach (allUnits);

}