Playing through this for the first time was such an interesting experience, the atmosphere and campaign structure are unlike any Halo game I've experienced thus far. Basically ODST puts you in this massive hub world, the abandoned streets of New Mombasa as you fight off covenant and unravel the mystery of what happened to your squad mates. Each time you find an artifact of theirs, a flashback occurs to where you play as the aforementioned squad mates and put the pieces together, where in these sections it's the standard Halo affair. These parts of the mission are...fine, I guess. Nothing amazing, just what you would expect out of a typical Halo mission. The atmosphere is what truly sets it apart however. Roaming the empty streets of New Mombasa, hearing soft jazz in the background as rain begins to pour and abandoned cars are still sounding off their alarms, it truly nails the sense of isolation, and gives off a super eerie vibe that something like the flood just never accomplished in 3 total games. Side note, but the dialogue in this game is awful, like genuinely the rest of your squad mates have really one note personalities and the stuff that comes out of their mouths is borderline cringeworthy. Regardless, this one is definitely worth checking out.