Okay I figured out the door puzzle, feel dumb. I didn't notice anything had changed besides changing B to C. I'd add a wire from the generators to the terminal, as on my first playthrough I assumed the generators were to refill the energy packs after you threw them.
I know wires are a bit like yellow paint on usable stuff, but it would help connect the two ideas. As it seems like a storage closet and I just assumed they had chargers for the stored energy packs.
I like the new walk speed, I'd make it even slightly faster, but the pace is already way more engaging.