Make the level all one map or use loading screens?

[jens]

I think you can safely make a level twice the size of the storage level (that is pretty big), as long as there are a lot of rooms and corridors the game will be able to optimize well. But of course the bigger the level the more to load and the more stuff in the level the more you have to keep track of and the more that can interact with each other to create unpredictable problems and so forth.

The main reason for the size of our levels is not a performance issue as much as it is to make something manageable in the creation process.