+1 to Commissar's House. Somehow the Germans seem to be able to take the Water Purifier Factory before the Russians even make it out of their spawn. And then the tank pulls up and is dropping HEs right into the spawn point, blowing up AT Riflemen and Engineers before they can even move. If you go right out of the building, you're getting sniped from B1. If you go left, you're getting sniped from Germans on the left side of the Water Purifier Factory. If you go straight, you're just dead.
Other than Pavlov's House, it's the only map where I've seen Germans and their tanks literally pull right up the enemy spawn point and kill with impunity.
RO2 is full of intentionally unbalanced maps because they're emulating scenarios instead of 100% balanced fights. Which I'm ok with. It's just on a few of the maps, they didn't put enough controls in so Russians can at least get out of their spawn.
Compared to Grain Elevator, which is the German version of Commissar's House, the Russians still have to shoot a good 200 meters down into their spawn to kill anyone from the Grain Elevator. That's a far cry from sitting in the Water Purification Factory and lobbing grenades directly into the Russian spawn from behind a wall, or letting the AI tank gunners snipe. The fact Panzers get AI gunners and the T34s do not is just kind of absurd, no matter how it's supposed to reflect superior German training. It's like having an aimbot at your side.