Works fine for me and just like always I was able to help someone in chat with his full mission builder with this link because I had the internet right there. After he looked at the link we talked more and he figured he had a much clearer grasp of things by the time we were finished. That was just with 4 people on. When there's 100 you can usually find out anything.
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The only problem is no one has caught on yet I guess because no one is using it to fly in the missions available.