OP missed the fun bit after the tunnel bombing:
The first cargo train exploded directly in the Severomuysky tunnel.
To continue transportation, the Russians began to use the detour route through the so-called Devil’s Bridge — a 35-meter high viaduct structure, which is part of the Trans-Siberian Railway. At that point, SBU saboteurs struck again.
“When the train was passing over this 35-meter high bridge, the explosive devices embedded in it went off,” the same official added.
At this point why don't we just glass the area and deal with that humanitarian crisis instead. This is what happens when you give a bullied person the gun, they start to shoot everyone because how could 'they' possibly be anything but the victim(imaginary man's supposed people).