In the game I just posted about here:
http://www.ageod-forum.com/showthread.php?t=19403
If you look at the unit stack a few areas east of Petrograd on the rail line, you'll see the leader Stepanov in the stack. He has no ratings at all, not even 0-0-0 listed, seems he's bugged.
I think that stack arrived as part of the Siberian forces that are given by one of the strategic options I chose, but I'm not 100% sure.
Jim