Amnesia Hardcore Mode

[Istrebitel]

I think perfectly fine hardcore mode is:

1) No pause during inventory or game menu open
2) Enemies do not disappear after you successfully hidden from them (and they dont spawn too - they are always there, and if a monster is needed for a spawn, it is instead moved from his position to the needed position and given orders) (except scripted places like game start or guest room-like script ofc)
3) Enemies partol randomly
4) Quest items are hidden in one of different places - so you have new quest item locations every time and you really have to search for it.
5) Monsters trigger not only when you pick up quest item but can also trigger when you enter a room with a quest item or after a random amount of time of you entering said room
6) You cannot leave a level through a level-door if a monster is in "attack mode" or "search mode" on you (evil agressive music) (except places where you must, obviously, do it by game story).
*) Optionally - death is final (it doesnt delete a save - just marks it as dead like in Diablo 2 hardcore).
This would require an autosave feature though to protect from ctrl+alt+del quits and basic protection from save copying (like, mark the hash of a last save somewhere in the game inner files or registry or w/e)