Off topic. This has nothing to do with Apache or helicopters, it's just interesting military material. In my opinion.
Generation kill gives quite an insight about the military personnel advancement towards Baghdad in 2003. It's a video series of 7 times 1 hour. The crew in the video is partly professional and partly real Marines (which were in the exact same Battalion the series is depicting!). Generation Kill is originally a book written by an embedded reporter.
I've also read this book about the same advancement in 2003, written by
a Marine sniper.
There are many similarities between Generation Kill and this book. The book is pretty heavy at some parts.
This video is from Generation Kill, but could be depicting a scene from the sniper book as well. It is depicting what a Marine sniper do and see. Let me warn you, the video could be somewhat shocking.