T016 Axis Rail Planning
A map showing where our rail repair will be up to the probable end of mud or more. It shows what our repaired rail will be for each turn - in brown for expected mud turns and white for expected snow turns. FBD3 is at the discretion of Centre and FBD1 of South, so guessed where they would go. It assumes the dominant weather for that time holds and we clear the route of enemy control before then if possible.

I have also counted the hexes to show where units could theoretically still get an HQBU (green line) in the last clear turn turn 17 (turn 16 rail repair plus 25 hexes). And also counted the hexes to where units will be isolated in the first mud turn 18 (turn 17 rail repair plus 100 motor MPs) - this one is difficult to do and so I usually mistakes so should be taken as approximate only.
Note: the above map shows HQBU in turn 17 - but we would probably want to do our last HQBUs in turn 16 a turn before last clear weather. And that is this turn.
Unless the HQBUs are to actually fuel up units to get them home for the winter.
The difference in the terrain between Gorky and south of the Oka shows. Even if we were to capture Gorky, we would have to abandon it in mud as isolated - indeed during mud turns all areas beyond where we could buildup in clear weather are likely to be isolated. By contrast there is still plenty of territory we could hold without being isolated in the mud south of the Oka.
Our enemy has noticed the importance of Gorky - and increased its defences commensurately. Bottom line is any intention to take Gorky has died and Voronezh has replaced it as our target. And to wintering units to have a "kick-ass" infantry and motorised in 1942.