One for all and all for one 4

In my opinion, Lizard and Bishop have the strongest lineups. Maretti also has good players, but it's still a mystery who will remain by the end of the tournament. But overall, the lineups look much more balanced than in all previous tournaments.

I looked at the regulations again, and I still have some questions:
1. Which rules should be followed on mirror maps?
2. What about substitutions in the end?
3. Since random maps are being played, maybe we can determine cities using a randomizer based on ХВ rules (and optionally for skirmish as well)?
4. And most importantly, what I don't understand. According to the rule changes from August 14th, digging for the Grail is allowed starting from level 111; however, version 1.34 is used as the main rule set for the tournament, which allows digging only from level 221. How should this be understood?