Where were the tanks unloaded?

We can confirm the location of the video as Pokrovskoye by cross-referencing the buildings in the video and visible characteristics on satellite imagery via Google Earth.

At one point in the video, a tank with the number 515 is hauled by a truck, with a grocery store with a red roof, a structure with an angular roof, and a grain elevator in the background. Near the railway in Pokrovskoye, we can find the same landmarks on Google Earth: