While they definitely needed a buff, giving them top of the notch German equipment that even the Germans didn´t have in overwhelming quantities seems a bit silly. I think they would have been better off with the (buffed) Ppsh or even Sten guns.
Partisans have already been adjusted. They have STG-44s and Panzerschrecks by default and are really good now.
(Also irregulars have been replaced by the AT partisans)
Why they didn´t get camouflage is beyond me. Isn´t that THE unit to attack form an ambush?