Both SVT and 7th man are borderline OP and 7th will be op at CP2.
In addition Commander should provide advantage in one are and all all so both weapon upgrades and premium tanks should not be combined in one commander.
More so adding a powerful off map like AT rocket strafe.
Commander should be at similar power levels so you do not see the same commander over and over.
SVT and 7th man are not borderline OP they are tools that would make a conscript heavy build more viable. Change to a higher CP is fine to me however.
Also you seem to forget that due to my suggested changes the most likely weapon upgrade on conscripts you would run into is PPSH41. This is besides gameplay also more historically fitting then 7th man or SVT because the soviets made absolute shit loads of them (6,000,000!)
Why should weapon upgrades not be combined with premium tanks? All factions have commanders that do similar things. Such as Wher with G43 and tiger, and OKW with both Tiger and panther and STG44. Advanced warfare as it sits now is almost never used because the PPSH is too situational and the airstrafe is bad.