I remember when this game first came out, I was 14 at the time in November 2012, I enjoyed it for the first like, three days, then I started to hate it and never wanted to touch it again. And to be honest, for two whole years I didn't play it until MCC came out in November 2014. And since then, I have grown to like and appreciate this game a lot more. Is it still my least favorite Halo game? It for sure is, it still has a ton of flaws, primarily the artstyle, I really don't like this game's artstyle, and the gameplay and the way it's designed is pretty iffy, but overall, it still is a very fun game to play. I can pour a lot of hours into the Multiplayer and have fun with it, and I do think the Campaign is probably the franchise's most creatively ambitious.
I like this game a lot more than I used to