Why is dice repeating history?

So, Sorry but I was under the impression that we take history so as to not repeat bad actions.   As we go as humans we are supposed to learn from our mistakes and correct them.   So with that, can someone please tell me why Dice has gone back to the beginning of battlefield 4 with battlefield 6?  Why is the net code in such a state yet again? I can't take it anymore lol.  Yet again I go though t he process of eliminating that its my internet...HOPING THAT ITS MY INTERNET only to yet again be disappointed  again with another battlefield game!!!!  
Played 3 games today, I kid you not all of my deaths were because of net code.  I can't prove it, I did not bother recording I was getting to ticked off to bother with it.  You can say I suck. defend the game all you fan boys want.......I have played battlefield for a long time....its just been disappointment after disappointment.  There has not been a solid shooter game released in the last 10 years or more. 
Its not just the net code with this battlefield NO the audio, this is the first time a battlefield game has also let me down with audio.   The audio does sound great but why......WHY are footsteps  mute?  They are not all the time no but I have never been snuck up on in any other battlefield but this one..... I have an amp/dac set up with a $300 headphone....Why is this a struggle.  I went through double checked my equalizer set up and adjusted it and Nadda, hasn't helped.   

I don't know what to be more upset about lol Like, I want to like and enjoy the game and have fun with it, But when I can't hear foot steps.....OR actually when I can hear footsteps, it doesnt matter, an LMG outdoes a SMG in CQC because of "netcode"  The LMG seen me first undenounced to me.  I run up stairs as I hear a guy behind me, I turn around and wait....I see his foot, start shooting Yet I DIEE!!!! as I littered his body toe to head with bullets with maybe a stray or 2 missing through the legs.   I just can't anymore.  Its one thing when I just have terrible aim, Idc I shrug it off as it is what it is but I do not always have bad aim, I tend to me one of the ones who get up there in kills, 35 -hit 50 a couple times in this game.   I have moments where I only can manage 6 kills.   I'm not consistent.  I just want to be able to have fun.. That seems to be impossible these days. Games are just frustratingly incomplete broken piles of crap. Can't have fun when I'm getting killed due to the devs incompetence, not learning from battlefield 4s   and allowing the tick rates in this game to be 4 out of 100 allowing us to be killed well after going behind cover.  Well after shooting another player you KNOW you're not missing.  I can't have fun knowing That I could be getting more kills if the game was properly done.  Doesn't matter how much I were to work on my aim, wouldn't make a difference in a game were netcode is trash