[CHAOS] A couple of questions (map crash, data cache?)

[serbusfish]

I have a couple of queries I hope someone can help me with:

1) How can I force the game to remember if for example you have opened a door or moved objects once you leave the map and re-enter it? I know this can be done as it does so in the proper Amnesia game. I see scripts for data caches, are those involve with it or do they do something else?

2) I have a large outdoor map with lots of trees about 1.5mb in size, but midway through loading the game crashes. Could this be caused by too many objects or something else because I have another outdoor map with lots of trees which is 3mb and it hasnt ever crashed.