Thanks. That sounds reasonable, but I am trying to see if there is any evidence the Royal Marines had that support in the 1980s. Unlike the Australians in Vietnam, who were not expecting any other use for their tanks; the British Army IMHO needed all of its tanks in Germany.
I don't disagree but suspect that they could find a squadron for the other largish NATO commitment.
Iiuc BAOR had 3 armoured divisions in the 70s and 80s, each with 3 tank regiments of 76 tanks; thats ~700 of the British Army's 900 Chieftains. I also believe that there were a number of tank regiments in the UK, but these had something like 42 Chieftains, but may have been padded out with Fox armoured cars. This is where many of the other ~200 chieftains were assigned. I don't know what the wartime roles of these armoured regiments were but I suspect that if the British felt the need to find a sqn of tanks for Norway it would come from these home based units.
In any case if the war in the Central Front hinges on 16-20 British tanks then all was lost before it was begun.