Actually Frank, having had a bit of a trawl around on the net I think these figures will work out OK; I think the Mike and the Mike Boom just need thinning a bit - or replacing with a bit of sprue or say, fuse wire. This helmet did sit a bit awkwardly but does capture I think, 70s/80s soldiering, or at least "Tanking".
The Parkas they are wearing restrict one's model to Autumn/Winter perhaps, and they should have quite substantial hoods (it's a bit difficult to discern this from the pictures provided); they were large with a wire stiffener in the rim. If Valkyrie haven't produced this aspect thickly enough then Milliput will take care of that.
I'm not sure if a control box/harness is still required to be accurate - which is why I'd hoped some former Armoured soldiers would comment, but I am more than glad that Valkyrie have filled this gap; I can now begin planning to populate my Chieftains, Challengers, CVR(T)s etc.
Brian