So it's not a frame or even a suit, it's actually a mecha.
Not a big fan of exposed pilot, this might work for moving cargo around in a safety of a base, but not exploring hostile territory and fighting.
Things don't have to be realistic in video games, but the feeling of immersion into the world comes from believing that this might work. And I would expose my arms and legs before my chest and head with all the vitals .
I doubt it will happen, but it's never too late to put some armor around the pilot, if you want to make a game with mechas, might as well make mechas look like mechas. Just allow (or require) players to walk around the base without the mecha, so character customization would still be important (and that actually would make sense, soldiers don't walk around safe bases in full battle great
)