Hello everyone, I just recently picked up a really nice Operation Thunder. When I got the game home and was going over the game I noticed that it is missing a part. I called Steve Young at Pinball Resource and he didn't have a part number for me on it. If you look at the attached picture you'll see a ball in the hole. Past that hole there should be a ball stopper (chrome I'm thinking) but I would love to see some pictures from someone that has the game to confirm what's there. And if anyone has the Gottlieb part number that would be really helpful.