The one that got away - Chris Ryan - Bravo Two Zero Mission
It's shocking to read how horribly prepared the unit was, from a overarching command point. Piss poor ammo supply, No claymore's or M203's, 50 year old outdated maps, no Intel given which was available, wrong radio frequencies given and they didn't know / weren't told that it reached freezing temperatures at night. What's worse is that seemingly no lessons were learned for the future missions. You would expect the SAS to be given what ever tools/equipment they need for the job. Scary stuff!
I've got Andy McNab's book as well so will give that a read at some point to what differences there are.