I didn’t read the book (probably should), but I worked with a few of them personally in my second OEF tour. Well, as well as you can if you weren’t in it with them. The thing is, they don’t talk. They call themselves “quiet professionals”. (We had some seals on the team too. They tend to be a bit more open.) When the deltas from Gothic Serpent told the story, it was extremely detailed and factual and emotionless, pretty much like all of our debriefs. (There is no book authorized from the deltas.) I remember at the end for lessons learned, the NCO focused on water management / preventing dehydration in disconnected combat operations, presumably because that was the one simple thing that could have increased effectiveness.
Do you have a summary of the culture? I hear mixed things, but I wonder how much of that is just a requirement of the jobs that they do needing to be performed by certain personalities
Delta selects for intelligent, physically fit individuals who don’t know how to quit.
Less team, more solo capable war fighters who can plan, then adapt and overcome.