For my next scenario, I will tackle Unternehmen Wintergewitter (Operation Winterstorm), the German operation to relieve the Russian siege of the 6th Army in Stalingrad.
For the core German unit, I am using 6th Panzer Division. I have a pretty good idea of OOB for this division, although I lack the names of the panzergrenadier battalion commanders.
The Russian OOB is much harder to come by, especially since there are few Russian-to-English translations of the Red Army's official documentation. I know that the 4th Mechanized Corps, 235th Tank Brigade and 234th Tank Regiment are among the units that fought the 6th Panzer Division 13-15 December 1942, but information, especially on the components of the 4th Mechanized Corps, is hard to find.
If anyone has or has access to source material, I'd appreciate it.