Well...the first couple of episodes may have some entertainment value. After that - it is more and more of rubbish. We have a Master Chief who is losing his marbles - but refuses to accept this and tries to maintain his grip on "his" team. All in the name of protecting his "brothers" - who also lie to each other, hide their injuries etc. - which isn't very conducive as far as mutual protection is concerned. The whole Bravo team looks like a personal fiefdom of one Master Chief, and not a Navy unit - particularly permanent insubordination is concerned. I will not even mention the way they adress each other and their officers.
Pure fiction...
About the most balanced character is Cerebrus.