Let's see:
1) Marcinko is the toughest SEAL to walk the Earth - Check
2) He's older, makes mistakes, but still slays a horde of bad guys before kicking back with a bottle of Bombay Sapphire - Check
3) He goes into extreme detail about how to plan and execute an Op - Check multiple times
I've read Marcinko's bio and a few other of the RW books. All of which were pretty good. This one, not so much. Still a decent read for a long trip where you are strapped into the web seats of a C-130.
Find it. Buy it. Read it.