When I climb on ladder and want to get off in midway, it's very dangerous, body jump up and down. (distance between up and down +- heigh of boots) You can use "wsad" keys and "ctrl" to safe walking there, but I don't know if there is an option to fall down when body jump. Once I climb on ladder and get off in midway, I used "a" key lightly and my survivor just fly +-10m away from radio tower to the ground, maybe because i don't use "ctrl".
For sure this jumping need repair.