I mean, if we are talking straight nerfs without any reworking, the second and third make sense, but the first seems a bit odd, since the bofors is designed to counter infantry right? I think on the whole, emplacements are poorly designed, but what would the point of the bofors be if it couldn't ward off infantry (even a lot of infantry)?
I did say IF the Bofors gets nerfed meaning I don't think it necessarily needs one.
Did you ever play coh1? The Bofors in that game didn't have as big a ROF and didn't have brace but still wasn't useless. Currently infantry get wiped in 2 seconds of being in range of the Bofors. Changing ROF means they can still get get in range to deal some damage before having to retreat.
Currently even if you attack a Bofors with 2x pgrens with Shreks and flamer pios from different angles the Bofors can still easily win due to forcing retreats on each unit in turn. Decreasing ROF would allow you to effectively swarm an unsupported Bofors with enough hard hitting munis invested infantry similar to the Bofors in coh1.
This adds a bit more counter play to a unit that already counters all infantry, LVs and even some tanks.