Just finished watching this movie and wiping a tear! Well worth the time to watch.
God Bless the men and women of our armed forces!

+1
Timothy, you stole my post. I just finished it too and was sitting here debating whether or not to post on here.
It wasn't quite the hold you on the edge of your seat action movie I anticipated, but it had a simple elegance that I truly appreciated. It was pretty much entirely believeable unlike most movies. Most importantly, the weapon handling and tactics seemed pretty much spot on. It's frustrating watching movies where the "professionals" walk around with the fingers on the triggers, sweep each other, and DON'T AIM.
Added to original:
One particular thing stood out to me with regards to the weapon handling. Reloads where not rushed or panicky; they took a relatively slow, methodical approach to changing m4 mags. I guess it's kind of like the quote attributed to Wyatt Earp. "Take your time in a hurry." No need to do it fast if you do it wrong.