It was then that we decided, against all military logic, to counter-attack. It was a first in terms of military tactics and we forced tank units to retreat. How was it done? Our soldiers did not know how to dig trenches, they considered it humiliating, but there was no choice – the houses were too small and fragile, they could not withstand a tank attack. So we made a line between the Sunzha and Minutka, dug trenches, and with approximately 40 / 50 men facing the tanks we advanced meter by meter, digging more trenches as we crawled forward until we reached the tanks and burned them. We pressed them until the tanks retreated, then we build more trenches and advanced further. It was highly unconventional trench warfare!
That's from Mashkadov's interview! It reminds me of how the original "sappers" used trenches and tunnels to undermine castles and forts in siege warfare. Sounds like the tank crews saw their tracks as mini-forts.

Thanks, Dave!

Best
Tom