I assume you have read all/every post by selco, good place to start. Read “Failure of Civility” It’s not a bible but the authors get a lot right and the book will get you thinking the right way. Another good book is “Survival Mom”.
Concider the construction of your home and whether the materials can stop a projectile. Basements are death traps unless you alter the exits for escape. Be realistic, can you escape from this house with all of your troop in an emergency?