I like to see Framing Frame get some justice here, but some key points that you missed/didn't cover:
Day 1:
Paintings can be thrown through the skylights you fall through with a teammate, however the slits in the walls can actually be done solo. The easiest is in Hall A, as you use the displays as a guide to where you stand.
Every room has only 1 camera in either of the corners, and the hallways can or cannot.
The extra opening asset provides a stack of boxes where you please. A solid option if RNG isn't your muse.
Any fall from the ceiling to the wood floor is a death. Every fall that isn't will not kill you. This includes the displays, and the busts that are in the center of the room in Hall A if you are a MLG Cat Burglar.
Should you have the alarm set off, no worries. Unless you are purposely going for a 25% stealth bonus, the game doesn't count you as going loud until the first cop cars pull up front.
The front doors are shootable, no alarms will sound, and no guard will care.
Day 2:
On DeathWish, there is a very small chance (about 1%) the cops will ambush, regardless of stealth.
The AI are extremely useful here, as they will prematurely mask up in the event of an ambush. If they have masks on. RUN.
The civilians used to be alerted by the leaving helicopter and call the cops. This is no longer the case. Stop running off and tieing them guys. I'm serious.
Day 3:
Sorry bro, no cam guard here (you may have mentioned it but I skipped the bag moving). You just gotta deal with those.
Every spawn is fixed for a certain object. There are hundreds of guides that explain each spot, so I won't make this post any longer.
Always keep that vault area closed. A guard that gets alerted to its presence will show no ! on screen. After 15 seconds, should he be alive, will alert the cops.
Cameras will not alert to the opening of the bookshelf, but will to the open vault behind said bookshelf. This is extremely vital to remember for the 2nd floor vault, as a camera can watch the vault.
the respawning guard here is actually a patrol. He will move room to room (barring the security door rooms, the vault, and spawn) and in every room stop and call dispatch and say all clear. Use this voice clip to track his movements through the building. After a few minutes, he will leave.
A 2nd body bag deployable is pointless, as you will never exceed 4 body bags.
All 3 roof doors are shootable. The 2 single doors are a bit tricky, as the lock is close to glass, but it just takes a bit of practice.
That's about all I can think of. Next time on Cranky's advice: