You could tone the blue down a little - it doesn't need to be eye-catching, just evident. It's already clear that the sections are broken up due to the headers so the different color is more of a guide anyway.
Also, when I said "The column headers should remain after each time period." I was referring to "Voiced", "Requirements", "Authors", etc. It can get a bit gnarly to understand what's what when you're halfway down the list. That was actually an improvement on the "Campaign List".
Two things I didn't think of before. One, the page isn't as resolution-friendly on lower resolutions as the old one. But since so many people are using bigger and bigger monitors nowadays, it might not be a problem, and you'd certainly have to make the list less informative to fix it on lower resolutions. So I think it's worth it to ignore this concern for now.
The other thing is that there's no download link for most of the campaigns. I think that a little down arrow button that goes to the campaign's download site, or the download page on Freespacemods, or the the download thread if there's no other recourse, would be nice. It would save some clicking. But it would take a lot of time to do it for every single campaign and there was some resistance to the idea the last time this came up (For the old campaign list).