Very good read, the Ayoob files has several real world cases of people messing up at the worst moment.
I loved the part of the guy that, when asked if he trained with his firearm he complained "I'm not Rambo!". I would have asked, why then did he carry a weapon if he wasn't planning on training with it?!
Again, good read adn some common mystakes.
The Ayoob files: when your gun jams in a firefight - Massad Ayoob