My first impressions are mainly
Matches and customisation menu were laggy. Desync was horrendous. But the content was good
I tried to tank my ranked matches and ended up plat 4…not sure how, lost every match and underperformed horribly.
I think some peoples settings got reverted
New armor cores, new armor, and new Coatings are absolutely gorgeous, I’m not even going to lie, but using any of them is causing a lot of people to crash, so yeah, there’s that
Am I the only one who really dislikes chasm as a map?
like…reaaaaally dislike it…
Which makes it frustrating becuase of course the new event is tied to a playlist where chasm is one of the only two maps in the playlist anad is weighted 3-1 in the rotation (or so it feels)
-Sound is pretty bad for me, very low and mushy, footsteps are pretty much non-existent idk why they have to change something isn’t broken.
-MnK aim feels bad, accuracy drops from 50% to 30%, there is something like mouse acceleration even If I don’t enable it and everything feels slippery.
-Chasm is the worst map so far. It’s nowhere near enjoyable.
Thats what i feel too, my settings look the same but it feels off still
Steam PC Version Custom Games:
Its nice to see some new maps. Thanks!
The transition issue looks like it has been fixed. Thanks!
Well unless I missed something you still cannot put your maps in Rotation like in Halo MCC.
I see no way to move, or ban users like in Halo MCC but you can ( kick users. Big Deal ) They will just login again and start acting up again.
Toggle Overide still will not let you change settings in game mode that you already saved a custom game mode.
Custom Games still does not shuffle teams at the beginning of each game to help get teams be even at the beginning of each game.
After 2 years with this game 343 still have some major issues with the Custom Games area. It’s a real disappointment. 
Pathetic.
I’ve already found like 3 jump routes on each side of the parallel corridors that let you weave in and out and up and down really freely if you have a pretty deep understanding of crouch jumps and clambers. I haven’t really seen anyone using them in my matches, and the people trying to chase me seem to get lost trying to follow lol.
I understand the chatter about it feeling kinda Boarding Action esq online after playing it a while. Try not to get caught just fighting down the parallel corridors and you’ll probably start to like it more.
New cosmetics are great you got a core for lore and og fans and one for halo5bros.
The boarding action nostalgia on chasm is real.
Bandit rifle is great.
Havent played oasis yet but looks sick.
Over all.
I think ill actually stay around for a while now.
Custom browser should provide plenty of variety.
Same old. It doesn’t seem as if things were fixed. I watched a player survive grenade after grenade. It happened so many times that we ended up losing. And I still phased through opponents with my melee. Winning or losing a match means absolutely nothing when there are so many inconsistencies. Oh well 
It’s just a wierd map. That one big room is pointless and the long hallways just make for a bunch of grenade spamming and very few places to get out of the way. I don’t hate it but out of the new maps it’s my least favorite. It’s a good map if you like snipers or br cause you can just sit and pick people off running up and down the halls
The new maps are mostly fine.
I don’t like how some things got nerfed.
Menus are still wonky today in some parts.
Some of the new coatings are unbelievably ugly. I will say if you’re a Patriots or Bengals fan you may be hyped for a few of them. But the pastel ones? Nope. I like wild color combos, but so much of this is just a huge miss for me.
The performance is just awful. All matches are laggy… even the menu
After playing a bunch of games,
Season 3 has added several new maps and a wide range of new cosmetics. I’m curious about what other content there is besides these. Do most players only care about cosmetics and not other types of content? Where is all the content? Season 3 was supposed to be the new beginning. It did bring in a lot of new cheaters and people who are back temporarily for the new cosmetics. I guess that’s good if you like cheaters.
Personally I’m pretty disappointed, but expected to be.
-After no word for weeks, was unsurprised to find the DMR not available in the campaign.
-The narrative is a minor improvement, but I don’t find myself very interested in it… or generally having much interest in where the Halo universe is at now… things have gotten so convoluted and they’ve basically restarted twice in a row without ever having the courtesy to actually just retcon Halo 4 and 5 and move on.
-Don’t care much for cosmetics, and there is no multiplayer mode vs covenant or anything so why would I play? There are dozens of sweaty PVP games out there but there is only one place to get Halo content and they are under-utiilizing it.
-Menu is choppy and I kinda preferred the old one
My friend noticed a very slight Aim Assist on PC and I dunno if its placebo but I can sometimes see/feel it and it throws me right off.
mouse feels super loose now! I was hoping they would at least buff mouse with more bullet magnetism, so I don’t have to line up the perfect shot to hit a 3 burst body shot. But I swear it feels bad now. Of course can’t prove anything because there’s no patch notes, so everyone just confidently tells you you’re wrong.
I think the update is really fun. The thing is that Oasis doesn’t run that great on my pc.