I caught the 7pm showing. Very cool movie! I'm really happy with the ending of the series. There were familiar elements of the movie from the previous three. Also, Rambo is pretty nasty with a handgun apparently. A couple scenes were a little over the top but that is the nature of Rambo. A few readily available knives made a cameo including a Boker Applegate combat knife on a LBV and what looked like a Pilot's survival knife on one of the Burmese.
Overall, a very entertaining movie for a lifelong Rambo fan.
(POSSIBLE SPOILER AHEAD!)
If you are a crazy Rambo fan like me, you caught the alternate ending from one of the movies thrown into the flashback scene. The one with Colonel Trautman pulling a .45.