Would it be possible to climb more stuff, like SCU boxes, ramps and elevators?

Yes, essentially. A lot of older content still probably won't be able to climb as much, but as we have a much larger level design team now, we are able to make more stuff climbable and also design stuff that's more traversal-oriented.

Automated tools got a lot better as well. Automated cover generation is now a thing. So level designers don't have to go and manually place cover points as well, which is very nice. Still have to double-check it though.