YetThe first 3 Halo games were in the 94-97 range.
Halo infinite - 87 meta
Halo 5 - 84
Halo 4 - 87
Halo MCC - 85
Reviewers seem very objective
And 343 really seems to be struggling to hit those mid 80 scores, delays, launch period issues, etc. And the studio is huge, some 750 people, although they cover more stuff than game development, that's like 3x Santa Monica Studio.