Good luck the game is broken. Half that stuff still doesn't work. Waste of time.
Is there something specifically broken you're referring to?
Combat bonds, resolving CZs, doing scenarios, even running missions now all help contribute to winning a war as-expected.
Beyond that, the BGS as a whole is actually working as expected. There's plenty of discussion on the BGS forum (which I linked above) as to whether
the current effects balance is good or not, and there's the
occasional edge-case which crops up, but they're whole other unrelated discussions.
Do things which hurt the economy or security, economy or security drops, likewise it increases if you do things which help them. Do things which increase/decrease influence, those effects happen. Do things to win/lose conflicts, you help win/lose the conflicts (opposition notwithstanding). Seems to function just fine to me.
Things I've heard about which some might think are broken:
- No Famine States. That's just because there's scarce few negative-economic activities these days, and it fights against the abundant positive effects... see my comment about effects balance.
- HGE's not spawning the right materials for the state. Sure, that might be an issue, but I don't think it's particularly BGS related... rather it's related to the mechanics which generate USS which, while influenced by the BGS, are (imo) not really part of the BGS. e.g If you're after a certain sort of USS which spawns in Famine systems... everything about the Famine seems to work (missions, trading effects etc.) but the USS aren't reflecting that; sounds like a problem with USS spawn mechanics.
That's all I'm really aware of that keeps recurring as hot-topics.