errr. there were no auto-loaders in ww2, in any tanks as far as I know, T-34 had a pretty standard sized crew in the later models when the radio-operator (along with the radio) came along. However the newer T-72s and 80s and such have auto-loaders.
Auto-loader, as far as I've heard (my best friend's brother is a tanker Leo 2A4) is pretty much the same as a normal loader. Skilled human loader reloads faster initially than the auto-loader, but if the battle drags on a long time, that robotic arm will still keep reloading at the same pace, where as the human will get muscle fatigue. Both can naturally malfunction, perhaps more the auto-loader than the human loader?
In which version do the barrage (collateral damage) tanks work? I don't think there was really much reason to remove that ability IMO. I mean if we talk about tank divisions, they always had some pretty serious firepower available, mobile artillery, like in ww2 Brits had Priests and Germans had many sorts of self propelled artillery like the Hummel, or Wespe.
I mean sure, the game has self propelled artillery, sort of, but they come a bit too late IMO.
The mobile artillery that the game incorporates (after lasers?) is the M109 howitzer I think.
That doesn't really detract from the usefulness, and lethality of older self propelled artillery (that was specifically allocated to panzer(grenadier) divisions in the case of Hummel and Wespe)
Wespe-howitzers were quite effective at Kursk IIRC.
The normal howizter artillery in the game doesnt really represent this kind of mobile artillery very well (it only moves 1 tile)