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@luigility You need, for the Legacy version, the "spsculpture" DLC pack which is in the "Legacy" folder.
For the Enhanced version, the "spSculpture_Gen9" DLC pack, which is in the "Enhanced" folder

@Azhcrove No, but some changes made by it are required to avoid conflicts (such as peds clipping with props)

@Azhcrove I tested by replaying the mission without crashes.
Is it consistent (always in the same location/during the mission)? If not, I think it's not the mod but the Enhanced version not playing well with mods

@Azhcrove Did you install all the requirements? Other mods installed?
Does it crash with a specific error and where (loading screen, randomly while playing)?

@SnakeVenom33939 I don't plan to, sorry, but you can still get it from the version 20.5 of the mod

@SnakeVenom33939 No, those cabins are like that on the original game, it's just that unlike some others around the map (also stacked in the same way), they forgot to add the stairs (I will add them in the next update)

@SnakeVenom33939 I felt it's better to replace those specific files in the actual DLCs, despite the downside of having to copy GBs of archives.
Thanks for noticing that, I fixed it

@Matt2233 On the toolbar at the top click on "Tools" and then "Package Installer"

@FeReise You can upload it on a site like Imgur and then add the link to the comment.
No, they have no conflicts

@cinch_torrian Not much can be done about that (the same thing happens with the mirrors inside various interiors, without ray tracing)