My uniform preference would be as follows:
Red Beret for meetings and ceremonies
Ball cap only as part of the "Class B" or T-shirt uniform
Current tan shirt with epaulettes
Olive Drab BDU type rip-stop trousers with cargo pockets. For summer, equivalent olive drab BDU type shorts with matching green socks and red trim (current issue is fine)
Neckerchief of choice on a troop of pack basis
Current BSA olive drab belt is fine.