Add Titles Challenged For to Achievements & Regens' Bio
This is a fairly simple suggestion, but one that I think would add a lot of flavour, especially to very long games. I'm currently in 2020 and when a whole generation of pregenerated characters have retired and there's basically only regens, it would be a nice way to mark those fighters who were good enough to fight for the title either in your organization, or, more importantly, in other ones. There's three other High Level International promotions in my game, plus tons of smaller ones.
I think it would add to pregenerated characters, but particularly to regens, who always need it. It would be cool if the champion who they lost to could be mentioned as well, at least in the Achivements screen.