I concur it should be worn directly on the tunic, no ribbons involved. MID`s are also silver these days.
I can confirm that this is correct.
My oppo (mate, friend, to non Royal Navy/ Royal Marines members) is a recipient of the QCBC.
He has a number of medals that he earned during his 22 years of service, but the QCBC emblem is (and was, while he was still serving) worn seperately.
seasoldier