Am i like the only one to note that the chief is going into war with only his fists? 343 probably wanted to keep as much of the stuff hidden as possible, so no look at the weapons other then that ridiculously powerful grenade launcher-pistol thing.
well it was damaged over the year from his cryotube or other phenomenons. Nobody changed the armor (at least it's what I heard). If you look closely it's actually his Mark VI. The jetpack activates in low gravity but I don't know why he didn't use it in Halo 2 or 3 legendary ending.
... What the hell did they do to the chest? Please, Microsoft, if you're going to change the armor, keep it relatively unique like the previous games. The basic chest armor design is now iconic. Unless of course they're TRYING to straight up copy from Section 8: Prejudice. In which case, good job.
Otherwise, I like the look of the new armor. Seriously, that was my only gripe, I just had to get it off my chest.