Actually I keep aset of Soviet military maps for Afghanistan. If you are interested, We can make some field experiments if you are ready to get to Bagram with Trimble GPS. It is now controlled by USAF, so you can feel certainly protected.
Ah, sorry, I was more interested in your biographical experiences, not so much the topographical details. :-) It's just that I don't know many who have had a job like yours, and in USSR.