It works very well, well done! I could only detect 1 tiny problem is that when you jump while crawling through something, the camera goes through the roof. But perhaps this is a pain to solve and a simple c-trace could fix this I quess.

Also would be cool if you could implement that if you are on the ladder and jump, you can jump towards a certain direction a bit with by holding down a move key while jumping. (hope that makes sense )

Anyway, I look forward to the code. My current move code is still a pain with certain ramps and keeping a smooth camera/view.