One reason my manual is full of advice from people like Selco (Bosnian War Survivor), FerFAl (Argentina Finance Collapse Survivor) and various other firsthand accounts.
“These are the real-world experiences I always try to learn from.” FerFal
http://www.freerepublic.com/focus/f-news/3282216/posts
http://www.freerepublic.com/focus/f-chat/3281015/posts
http://www.freerepublic.com/focus/f-chat/3281012/posts
Selco
http://www.freerepublic.com/focus/f-news/2798007/posts
A source that I skip.
I have served in the artillery, it isn’t part of my prepping, nor part of my prepping advice that I share with people.
First-hand accounts are excellent resources to build upon. However even these can be misapplied or misinterpreted. The fact is that every disaster presents unique challenges that are only fully understood in hindsight.