If you get the time and have to pick from the two, do read “Crouks” first. I enjoyed reading “Assignment” but It got unfavorable remarks from the S. Scouts Association. I really enjoyed the perspective gave on pseudo ops, but I personally did not agree on some of his political points made in the book, but again I was not their and only know what I have read else were. Overall I give the book 4 out of five stars. Just my .02 cents! And I do recall the COIN Manual that was a little while ago. I hope it helped out. I have four different Rhodesian COIN manuals and I am currently editing all four together with various added comments and references, and to as well show how some of the doctrine changed as new versions became available.