A friend and I were camping the roof of the NWAF firestation. He was on the main roof, and I was on the tower. My friend tried to climb down the ladder to reach the ground, but when he scroll-wheeled the command to climb down, his character walked off the edge of the building to his death. His character momentarily teleported back to the top of the ladder, and then he died.
I tried to climb down the from the roof of the tower, and my character also walked off of the roof when I told him to climb the ladder.