I’m 2/3 done with the DLC (probably) on One X and it started crashing after I travelled (on my own) to the Wildlife Reservoir area with the elevator. Specifically, Fast-travelling to the Penthouse to confront a certain character, triggered the crash (“The man who chafed” quest).
Walking from the hotel all the way to the Pilothouse and entering the building triggered the crash on the loading screen.
This crash, the way it sounds and happens, is very much like Dishonored 2 and Death of The Outsider games, both crash right before reaching the main menu (the point when games fetch save data). Fixing those is easy - turn off WiFi/unplug the Ethernet cable, launch the game, get to the main menu, reconnect. It has something to do with the way Xbox fetches save files from the servers or something, I don’t remember. All other suggested solutions for that problem (hard resets, clearing cache, deleting local save files, etc.) didn’t fix it for me.
However, that is the only specific point triggering crashes, but here I have no way of testing it, I’ve shortly passed that area and my auto saves are replaced now, recreating any of that did nothing.
But, just in case the QA team hasn’t uncovered it yet, it might be worth checking.