I'm hopefully going to do a review on the book for here and will read it again before doing so. But I think Field says that the CVR(T)s mobility would have been negated in any battle for Stanley as obviously the Panards would have been operating on road.
Field when attached to 2 Para for Wireless Ridge as "Armour Liaison Officer" quickly pointed out to Lt Col Chaundler who wanted to use the troop of CVR(T) as a "blitzkrieg" weapon in close support, that this would make the vehicles vulnerable due to their light armour that could just about keep 7.62 out but would be destroyed by .50cal and above and even sustained bursts of 7.62. He stressed that CVR(T) should be used in a stand off/fire support role, taking advantage as far as the terrain allowed of the main armarment, co-ax and above all the night vision sights. Chaundler to his credit took the advice of the expert on the ground.
This was proved to be correct and it was commented on that had CVR(T) been deployed at Goose Green/Darwin then the casualty rate would have been lower and there would not have been the reliance on 84mm and eventually, MILAN to clear positions with the subsequent problems with ammunition supply. Field offers a caveat in that the terrain at Goose Green was different to that at Wireless Ridge and Tumbledown where the vehicles were also successfully deployed, being much more open with longer fields of fire and that the Argentinians with an abundance of heavy weaponary, not least tank-busting Pucaras, would have probably caused heavy casualties among the RHG/D