How Do I Split Players Evenly After The Game Starts?

Okay, I’ve checked How do I Evenly Split the Players into 2 Teams Mid-Game?
But it doesn’t give a solution. How can I do this?
I’m making a sort of “King of The HIll” style game, but I want teams to be even, when it would normally be a sort of free-for-all instead. How can I make this work without using map options?

buttons + counters + properties + checkers. i gtg but if clicclac’s online he knows what to do

Here you goTeams

That’s from the game beginning, not after, but nice guide.
I mean the game starts as a free for all and players press a button and get split into equal teams.