The Axis and the Soviets used preregistration to get their artillery targets ready. On the move, after a breakthrough, the Soviets used direct fire until they got stopped. Then they set it all up again and hit repeat. The Germans did the same initially and supplemented that during the hay day of blitzkrieg with air strikes. That required radio nets that the Soviets never really had, and the Germans ceased to have later in the war. We gave the Soviets about 4 million radio tubes and somewhere near a million radios (far, far more than they produced themselves). That was still not enough to give them the kind of radio nets needed to pursue our arty tactics across the board. If you were to study how long, it took the various armies after out running their initial arty set up during an offensive and upon establishing a defense to reestablish their ability to use indirect fire (excepting organic mortars and the like). You would find that the Brits and the US took the least amount of time (all things being equal) by quite a bit to do it. I'm talking hours at the very least and often longer.
The Germans were aware of how to do it from at least 43 onwards but did not for various reasons. A large part of that failure was the fact that they were better (took less time to get set up) at it than the Russians (where some 70% of their army was engaged), but the real sticking point was lack of radio nets needed to put it into practice the way the UK and the US did.
I'd cite various authors if the wildfire in 2020 had not consumed my library. But there is an option. I'll consult with Jim O'Neil and see if he can cite the needed references so you can see for yourself what I'm talking about.
WMC