This is real good.
Some feedback: The shaders look weird in general, i feel like it stand to look much better with some lighting and texture tweaks. I think grapples should launch faster and i wish i could tell what was happening reeling/spooling wise on those, i didn't really figure it out as i went through the intro level.
The biggest thing i'd change is the third person camera feels sloppy and exacerbates the camera difficulties already happening with a weird spider mech rotating to stick to walls. I find myself wishing it was a rigid first person camera and i had some kind of reaction wheel control to handle the mech rotations myself. But i'm an insane 6dof spaceship guy so maybe discard that opinion.