Out of the 5 Bungie games it was by far the worst one imo.
My two biggest issues with that game are the split story (annoying as -blam!-, also terrible) and the health system (really -blam!-ing terrible). Not to mention they nerfed or removed the good weapons and added subpar replacements.
It's a game that I played once because I had no patience for its bullshit.
Maybe I'm just too caught up in Halo CE nostalgia.
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I kind of find it funny that the 2 things you hate the most are both things that people really loved about the game. Even in the midst of all of the complaining and ridicule the game received when it first came out, both of those points were generally received quite positively.