Best campaign of the Halo series, and why

[Ganoncrotch]

Reach has a fantastic campaign if you're invested in the Halo series as a whole, if you just play it on its own then it wouldn't have the same impact, but given that you know the outcome of the fight it adds extra tension to the battles considering that the characters you play as are hopeful for the best outcome and gunning for their lives... but in reality you know their story while heroic has a tragic ending to it and that only the AI they're guarding with their lives makes it to the Pillar of Autumn to leave Reach, fantastically put together as well the way the game plays out into the intro of Halo:CE

ODST is another great title for expanding on the universe, it kinda lets you see what goes on in the world(s) when Master Chief isn't around to save the day, what the world without him can become.... and it also shows you just how quickly you can be put down by some badly placed grunts in comparison to how they tremble before your might when you get to play as John-117, by contrasting how weak your character is in the ODST it shows just how tough a bastard the chief is, again it builds the universe that he exists in and shows the player why humanity look at the Master Chief as the hero when he arrives on a scene.