NETCODE, Sound fixes reverted to before patch ??????

This is a question more than a statement, before replying with some sad predictable "get better" COD **bleep**, please check for yourselves, I have noticed over the last couple of days the the sound that was initial fixed, though hearing every footstep your teams included on packed tiny arcade trash maps wasn't that helpful, but now its gone back " most of the time" to no footsteps, 

Equally, the improvement to hit registration seems to have vanished, I emptied an entire mag on the new ice conquest into a plyer shooting at someone else, stood still, not 1 shot connected  distance around 20m, after that I uninstalled the complete game , re-installed and for a while it was fine, then suddenly again nothing hitting, popped on the network overlay to show hits and ye, 8 out of 20 hitting a target that filled the 2x scope, using recoil compensation, tried 3 more weps. all maxed out and the same results

I'm also being hit through walls, corners and vehicles again, 

Have some of the "back end fixes" reverted or broken the changes made in the initial patch?