Thanks for the heads up on the error.
Regarding mansion's ligthing, yes, it is dark at night; but since almost no enemy units in this mission have any NV, I consider it a small grace to the player. Going at night can represent cutting the power to murder everyone in the dark, or make snatch and grab safer.
Legion is right about old maps - I'm still learning how to use the new lighting properly; the 'X-Prison' map that comes with a new mission in F.3 can be considered my first large map custom-built to make sensible use of the new lighting system (and minimize its pitfalls). Sure the new lighting is with us since some time, but I haven't made many maps in the meantime, busy with other stuff.
What I'd appreciate would be settable light diffusion (per deployment, ideally), so the lines between light and dark are less binary, especially underwater (but not in space).