Its so unfortunate that 343 messed up CE Anniversary so badly. But at least they did a lot better with Halo 2 Anniversary (though that is also not without its issues).
Now with a rebrand to Halo Studios, which was 100% caused by their poor stewardship of the series and the ruining of their own reputation beyond redemption, 343 will have to super-over-deliver with whatever they come out with next.
And I pray it is not a CE Remake. They messed it up already once before, just leave it alone and do something different with Halo. Make ODST 2 or some new story about a new Spartan entirely, I am tired of my favorite characters and stories being butchered these days.
Bugs, for one. So many, many bugs. Bugs that remained unfixed for years.
Also, graphics. I don’t mean fidelity, because fidelitywise they were pretty good for the time. I mean the complete change in art style. Anything forerunner became riddled with lines that made the designs overly busy. The reuse of Reach assets instead of actually remaking the assets to match the original game. Its like at that point, are they even remastering the game? Not to mention how many changes to the environment models were inaccurate enough to cause players to try to shoot through or walk through invisible collision geometry of the original game.