Just thought i would throw in my 2c.
When i moved into my house I didnt think anythign about the layout in a tactiacl sense.
After looking at it for a while i really like it.
The hall bathroom has a small window that looks at the front door. and the front railing is beffy enough that someone has to come up the sidewalk.
If need be I can flip the table up and secure it to window B.
I can also easily block off doorway D with furniture.
By doing this it impeads the forward movement of the bad guys. giving me more time to shoot the piss out of them.
It seems that this front door setup would be easy to incorporate into any house plan.
Also whe i build my next house I am going to build it using ICF construction.
ICF uses concret insted of wood and the walls are a solid 6-8" of concrete.
This makes the walls extreamly energy eficient, Bulet proof
, Fireproof, huricane,tornado..... ect...
they may cost a little more in the begining but if your going to build a house might as well do it right.
Here is an ICF cross section view