OP updated with more videos.
Well, I see a progress now in performance. Blue (Western Military District), Yellow (Southern MD) and Red (Central MD) teams are performing more or less close to each other, while Green (Eastern MD) team is an obvious outsider and didn't really progress that much through 3 stages. That's probably because all four teams are competing on T-72B3's, which is rare species in Eastern MD, their MBT is T-80BV. This's serious disadvantage to compete on the machine you do not really know.
As of now three military attaches have confirmed their participation in the event next year: US, Germany and Italy. They'd need to rethink the whole competition though, for starters the last firing range currently is guided missile -- that'd be a problem for competitors due to lack of any kind of missiles on board.