I don't think it's ever been confirmed yet.
Due to the fact that the no prototypes of

or artic assault appear in promotional literature, are basically repaints & use recycled parts (& two which were never 12" VAM outfits) I've always assumed them to as being later releases.. kinda like a "Wave 1.5"... but I could easily be incorrect for assuming that.
Question for the M.O.C. collectors out there:
The archives only feature a

card showing pictures of prototype figures & vehicles, do any

backing cards feature pictures of the production toys & which figures appear on the backing cards of

& Co?