[Freddy]

One option: having concluded that this is a person who won't accept constructive critique, change, or conform to the norm, you can politely request to your assignor not to be matched with him again. When asked why, tactfully explain. If and when enough of your fellow officials do the same, the assignor will no doubt put this fine over-the-hill veteran gentleman out to pasture. Bet he had some good years. Sounds like his good years are over.
This is only one option. I'm sure there are others.