Not wanting to get involved in any slanging match here, but anyone, and I mean ANYONE working in Ops not knowing what CFMU is... that is extremely worrying - this is the most basic of basic information in this industry.
I would not consider someone a "big headed know it all", just 'cos they know what CFMU is and expressed surprise - I'm sure most who have read this thread so far will have been of the same opinion!
Like has been said before - good luck in the future mate, but for those of us who have been in the business for a while, it is quite disturbing...
JFF