Feedback about MP from a veteran Halo fan

Infinite MP has good and bad things about it.
The good:
Surface impressions it feels almost like classic, armor looks GOOD probably best in series, Mauler feels incredible - well done, cindershot is a really cool concept, most maps are phenomenally designed.

The bad:
I’m just going to dump it all, do with it what you want.
When you read the following, consider that I have low ping. The lag is not on my end.
Here are some complaints I have with MP. I can’t play this game. If you get it where it doesn’t
Shot reg don’t work, enemies shoot you later than you shoot them and yet you die, get shot through walls, headshots don’t work on people sometimes, shoot multiple clips into a no shield enemy and they live, people near you can disappear suddenly and then somehow reappear, when enemies aren’t in LoS it seems like they are ussain bolt and can just appear super fast, most of the small weapons aren’t worth picking up, the good weapons are hugely inconsistent, big team sandbox balancing is bad, power weapons don’t feel powerful with a couple of exceptions, grenade spam for days makes objective points a higher risk than it needs to be, if you kill somebody they don’t die right away and they have a split second to kill you back, banshee fuel rod doesn’t kill in one hit and regular shots have odd tracking, chopper doesn’t have the same momentum in halo 3 making it hard to viably ram into somebody and boost doesn’t kill unoperated vehicles, bad spawns and enemys are around the corner, trying to hide to regain shields 9/10 times another enemy will appear from the other side despite you looking and seeing nobody, Aquarius in general is not fun to play on, SBMM is too strong and I will play 5 games getting nothing done then will have 2 games where I stomp and go back to 5 games getting nothing done, playlists are not split into slayer and obj (I don’t want to play odball and I never liked it. It’s fine, I just don’t like it), zoomed aiming on mouse feels off like if the camera physically moved forward to zoom instead of letting my pivot point be on my spartan like normal aiming, menus are confusing to navigate, shotgun takes too long to kill making it almost worse than starting weapons, zoomable weapons in general feel like they don’t work right and hitreg is off or something (I can’t pin point it but something feels odd and I can’t hit with them, BTB needs wooooork and BR starts and more vehicles (where are the tanks?), armor colors are relegated to shaders for profit only.

I won’t be playing this game for long. I’ve had enough seemingly wonky deaths today as is. I think I’m just done with Halo altogether. I’m tired of being let down by 343. I can’t do this anymore. I’m not buying campaign.