Hi Si,
I somehow missed your reply. Apologies for that.
Though I have now found my copy of your USSR rules, complete with card summary sheets and the cards of tokens (as yet uncut).
I also have a screen print of the original BA website page, which summarises the rules, offers some variations, and prices them at £5. The screen print is dated 18/10/2008, which I’d guess is when I bought them.
I’d finally dug them out as having recently purchased a few Quar, I was thinking the rules might be useful for a small trench warfare (raids, etc) game.