What are the specific effects of brain injury based on location in the brain?

I read that the majority of gunshot wounds to the head actually survive. I used to take anatomy and this has really got me thinking. I figure through both temples, or the circle of willis or brain stem will probably end everthing right there. But where in the head can you reliably survive a gsw, and where does it reliably cause 'brain death' but not actually cardiac death?