Not to sound rude, but have you seen the hate which people have for OP mode? If Ultra OP was added i think that it would create a war :-P Same applies for Ultra Hardcore. Personally I would not enjoy these two new modes. The only thing that i can suggest, is that rather than adding an ultra hardcore mode, you can set yourself challenges e.g I want to do a game of eggwars where I don't buy armour. This would make the game a lot harder (but not affect any other players) and hopefully let you enjoy a really hardcore game!