Terrible campaign. A huge step back from reach and even halo 4. Very short. Super bland. No emotional weight like in reach, just show up and kill this.
Multiplayer was trash. They wanted to make it competitive and not fun. Pro players make up .005% of the community. No idea why they're catering to them. I preferred armor abilities, just not making them too much like cod. The game could've used options to mix up playstyle in competitive.
Had a lack of fun maps, OG maps didnt work well with the new movement system. I wanted to play halo. But this game had a severe lack of engaging content. I played each game mode 1x and felt no excitement/fun to want to hop back in. I uninstalled after the 1st week after release.
I have played it a few times since release. Notably last week. It's still not much fun, and it's still missing the addicting fun nature of bungie's halo.