So I been thinking about this thread a bit and I feel I have something more to add.
Your "fallback position" can also be simply a plan to retake your old position.
Now folks are gonna say.. " this makes no sense, since u lost your homestead to overwheleming force, or why else would u have bugged out of your retreat.. Why should a retake attempt be any different"?
And that would be a legit logical point.
But hear me out:
NightVision....+ coming back at night....
-have a proper set of NVG such as PVS14 and know how to fight with them (zeroed IR laser on your rifle for aiming).
Come back at night, the combination of Nighttime confusion of the enemy, debilitation via being woken up by shooting.. , with fighting on ground u are familiar with and they aren't.. may give even a very small group of only 1-2 fighters an overwhelming advantage over even large groups..
Especially when said large group is enjoying the fruits of their taking your retreat, ( drinking, eatin lots so both makes them sleepy)... coming back a couple hours before first light should work well.
Even in the event they also possess NVGs.. they have to be put on, turned on, adjusted... Not an easy thing to do when your in deepest slumber maybe even a bit drunk...and someone is quickly going room to room shooting all the forms on the floor and in the beds..
Now you can "what if" this to death and paint METT-TC situations were this wouldn't work .... but I am convinced that fortune favors the bold and in many situations it would work quite well..