Thanks for the summary, was a nice read. Doesn't sound like that patch is trying to be the V1.0 CoH2 from June 2013 though, otherwise you probably would have mentioned ISU-152 and Elefant being in t4, and the ridiculous damage system on top of complete lack of weapon profiles.
damage system: Back then, a penetrating shot of an Elefant or Tiger removed ~90% HP from a SU-85 or T-34, BUT both soviet units were able to bounce a shot from these tanks
weapon profiles: CoH2 launched without weapon profiles, like in CoH1. Meaning SMGs & LMGs had the same rate of fire and burst duration across all ranges, only the accuracy was affected by distance to target