divided game is something like: the players over 1150 ELO can only play in HR games (taking legion HR bot for example), while those under 1150 ELO can only play in normal rank games. also, announcements are necessary in lobby, such as "Player [ABC] has the ELO 1200, this host only allows ELO <1150, please join [ent] legion mega td hr #xx / type /w clan.enterprise !g hr to find HR games."
one good thing is that there will finally be a game on HR host (still game #1 now

however there can also be some problem. obviously it's a bit too complicated for a pub custom game and i don't know if this really worth it. also, it can happen that sometimes mates cant join the same game. anyways, hope this isn't a stupid idea :>