Are they fixed in the suit in the lore? I always thought it was removable.
The idea is the Spartan and the suit are a integrated system. It's a force multiplier. They are more comfortable in the suit than out of it. In the TV show you really get the sense they can't wait to be out of it. Every 2 mins the helmet comes off, even in combat situations. Sometimes he's not even wearing any armour in a threat situation. I realize seeing the actor is a TV thing. But it's like the Judge Dredd movies. It's not the same character if he keeps removing the helmet. He's mostly not in the helmet or the armour in the show.
That said I think the show is ok. I just dislike how they have to rewrite the original story arc instead of creating a new independent story arc.
Why every other show has to be about some stoic character getting in touch with their feelings I dunno. There's an alien invasion nuking your planets but... feelings....