U.R.S.S.? Do you mean the USSR? That sort of didn't make it very far into the 90s... After Rocky Balboa beat Ivan Drago in his own country, I think the end was inevitable.
I hear what you're all getting at, but we already have:
-regular season games with an all-star game and playoffs
-national Cup tournaments
-private leagues
-BBB tournament
-national team tournaments
-U21 national team tournaments
-scrimmages
Adding another layer of rivalries to the mix seems overwhelming. If the guild/clan/federation/alliance/club-thing is something that transcends just BB, then it's probably best organized off-site. PLs can be set up as two-team leagues if individual arcade-style matches are needed to facilitate a special tournament. Maybe the PL schedule needs to have an option to allow the schedule to be manually set up rather than randomly established, and that the schedule duration also be customizable so that all matches are only between rivals. That would help with these sorts of competitions. But it seems like a like of work for the developers (who do not have a lot of potential
(98580.417)).
Don't ask what sort of Chunks they are, you probably don't want to know. Blowing Chunks since Season 4!