"ПОЛНЫЙ RANDOM - IV"

You should think twice before inviting someone to a tournament who, in their very first posts on the forum, applied for three tournaments, two of which are for Heroes 3. :D

You're just jealous - you weren't invited to the Facebook group, but this guy wasn't afraid and signed up. :D

Added 6 minutes later

What about splitting into two groups?

I don't see the point in doing a "fathers and sons" split; the skill level is approximately the same. If there's enough participation, a draw into two groups is possible, because, as practice shows, a full round-robin tournament doesn't get finished.