Seeing the videos of destroyed Russian equipment I am a bit surprised how familiar it looks to what it was when I was forcefully drafted into soviet military some 30+ years ago. There are maybe few new types of personnel carrier vehicles which I do not recognize but everything else is decades old, and even back then in 80s it was not any high tech (except for T-80 maybe). As an example, to coordinate artillery fire we used paper maps and mechanical rulers to convert target coordinates into azimuth and elevation angles. Officers would carry secret reference table books with them which were used to apply a ton of corrections: ambient temperature, wind direction, mass of the charge and the projectile and drift due to rotation of the projectile etc. All that was manual, calculated on paper, slow and error prone. I remember myself back then wondering why we couldn't use simple calculators to do this math quickly. The dead reckoning equipment (which was based on mechanical gyroscope) had such high error that after few tries we decided to never turn it on again - after few kilometers of drive it would place us some 500m off the actual position. Sure, maybe some electronics are upgraded nowadays, it is hard to tell from those videos. But the stories of Russians being lost on their way, it rather looks that nothing much has changed.