There were several vidoes shown them arriving per train, and then deployed in the field, but I…

And yes: they would be ideal for urban warfare: Russian 30mm autocanons were one of most unpleasant surprises for Ukrainian troops already…

There were several vidoes shown them arriving per train, and then deployed in the field, but I haven't seen any indications of them in action.

And yes: they would be ideal for urban warfare: Russian 30mm autocanons were one of most unpleasant surprises for Ukrainian troops already during the fighitng on approaches to Kyiv, back in March.