In pursuit of that, I went looking through my terrain for inspiration. One feature of the Eastern Front that can be seen in pictures is that of Rail Stations. I found that I had a train station, a coaling yard and some warehouses. What I don't have is rail road tracks. So I started looking. I am thinking of picking up the pack of straight tracks that they offer. That should finish out what I need for the scenario.
Now that Rich has published his official lists for Operation Barbarossa, I will restart my campaign once I can seize the kitchen table.