There are still a lot of hit registration issues, the last two nights I have shot someone multiple times in the head with both the AK-47 and the M-16 and they've not dropped, you can hear them scream, you can see the blood fly off of them, and my sights were perfectly on them as I fired the round, most of these engagements are at less than 50 meters when this happens noticeably.
This is an issue I reported in this issue tracker already https://feedback.bistudio.com/T167462 but we've seen no progress on that issue tracker since it was made. I'm not sure if this is a server side sync issue, if so we need to have the servers that are officials moved to dedicated servers to see if this is still the case.
The problem also could lay in the core code of the game that BI hasn't released yet, but as of the last update this has gotten a lot worse than the prior feedback tracker I made.