>>96511409
I do vtt, so I import tokens for npcs and maps and set up all the dynamic lighting.
Import/make items
basically I insert all the stuff that seems like either the obvious or most likely things they'll do.
Then I have a wordpad doc of notes; Npc profiles, If they do X then Y stuff, plot hooks etc

People aren't that hard to predict if you're playing with people that behave consistently and want to "be heroic".