I managed to see the first episode, thanks to Comcast showing it through their website. The feeling I got, from how little character development there was (at least yet), and how abrupt things happen, is that the film makers wanted to resonate just how un-imaginable the circumstances presented themselves, so suddenly, to these Marines, fresh from being used to life with not much worry or any real idea of what combat would present itself to be - jumping instantly from saying simple, melancholy good-byes, to difficult, intense combat. When they are suddenly going ashore, us having not seen their training, it is out of sight/out of mind, so it makes you even more uneasy about what the guys are getting themselves into, so fresh from life in the states.
Accuracy seems to be paramount, with folks on another board discussing little details like the use of a glove to pick up the hot .30-cal machine gun, and the correct cantines! Things that other productions would certainly have not gotten right, or included. The CGI is amazing as well - if you weren't told beforehand, you wouldn't know that it was, I suspect.
I hope I can catch further episodes. Already in this first one, you get a glimpse at just how hellish things were, and of course it will only get worse. Even though it is still 'hollywood', you get a very real sense of what it must have been like, which made me think right away about a great uncle of mine, who was a radio-man in the Pacific. Participating in several island-hopping invasions, it had such a traumatic effect on him, he became an alcoholic after the war, and was never the same.
While Tom Hanks put it in simple terms, and it is only one facet of many driving forces I suspect behind the motivation to fight the enemy, you cannot argue that racism was not present in the Pacific theater, on both sides, where two very different cultures clashed, at a time that neither properly understood each other. The terminology used by the commander, on board ship, before the invasion for instance, was I felt realistic to the time and the event, given the commander's need to ready the men for invasion - in an effort to dehumanize the then enemy in the minds of the men fighting.