I tried to recreate an Draugr ambush by having a look and (failing to) copy the same mechanics as in e.g. Bleakfalls Barrow or Dustmans Cairn.   I got it to work 50%, the Draug or Skeleton sleeps, wakes up and attacks. But what I completely failed is the lid bursting open. They just step through the stone lid. Does anyone has a step-by-step guide or YT video tutorial how to do that?   Thank you