Make the level all one map or use loading screens?

[Harry]

Hello, I am currently working on a mansion type sort of house. I have been planning to make it one large map, but would this been too stressful on PC's or the engine? I wanted to make it one large map to prevent people from "cheating" their way out of monsters spawning, but if I have to sacrifice a large amount of performance I'm not sure if this is the right thing to do.

Would anyone at Frictional or someone experienced with the engine/level editor kindly share some thoughts on this?

I'm not that well versed, but I remember seeing somewhere that streaming ISN'T used and that therefore, each level is pre-loaded. This can be a big problem if you plan on making a mansion sized map so my gut feeling would be to keep to roughly the size of Amnesia's largest levels.