I’ve just completed “A Crack in the Ice” the most recent story line in Living World Season 3. It didn’t take very long: about four hours. I had some help with the next to last Story segment since I couldn’t find the entry point. Spoiler, it was on top of a pillar that you need to fly to. And it was helpful to have some extra firepower. If you can, take a friend for the last two story segments.