I say this after buying various straightforward remakes, but I think switching things up gives it more justification for existing. The original still exists. Why not use it as a base and change things up?

They claim it's because they're using Unreal Engine for the first time and wanted to test the waters by remaking a game they know well. Honestly it just makes them sound even lazier in my book. That and the rumors of massive amounts of generative AI used for development.

id imagine remaking something with an established story line is easier to do for an outsourced team.

keep in mind, none of the multiplayer stuff is being remade, a multiplayer game is being made by halo studios themselves. whatever this team isnthats doing the outsourced work is solely working on modernizing the campaigns. its be extremely silly to rerelease the multiplayer modes with them and splinter the playerbase lobbies

They've been doing a bad job of writing new stories. Fumbled it already with 4, 5, and Infinite. Maybe put enough time after Infinite for people to not groan as much as before about the next antagonist pivot

because that requires more money. why bother when you can just polish an old game and resell for the same price?

I assume that it's intended to be a nod to the original game's full title, Halo: Combat Evolved. But "combat" is an uncountable/mass noun:

https://en.wiktionary.org/wiki/combat

combat (countable and uncountable, plural combats)

And "campaign" is a countable noun:

https://en.wiktionary.org/wiki/campaign

campaign (plural campaigns)

So I guess it's grammatically incorrect without an article before "campaign".

As Bungie demonstrates: you can take the studio out of the Microsoft management that makes passionate employees quit, but you can't take the Microsoft management that makes passionate employees quit out of the studio.