You watched 10 mts and let zero character development occur. If you watched it you would find out that dude doing hand to hand is obsessive about being a good soldier to the point that everybody in the Battalion picks on him and calls him gay. That part was supposed to be weird and silly.
Watching 10 mts is like drinking the water in a restaurant and promptly leaving and saying the food sucked.
I've never been in the military so I'm talking out of my ass, but it looks the most believable out of any show or game I have ever seen.