For Vassal, the Soviet inventory currently has the JS-2, JS-3, JS-4 and JSU-152. Fire & Sword has the ISU-122. I think I'll be calling it JSU-122. Are there any strong feelings and/or convincing arguments against doing so?
I know it's English/Germanic vs. Latin/Cyrillic argument. I was thinking of putting something in the OOB notes about that.