This took me right back to my Warhammer/40K days of hooligan greenskins causing all sorts of mayhem! Tonally, this is perfect and every single aspect of the game points right toward the riotous themes at the heart of the game.
You've introduced some really clever rules techniques. Others have mentioned the shifting GM, but seriously, it's great tech and I'd love to see more games that shift between GMed and GMless like this does.
I'd love to see a version of this with a layout that brought the text to life!