I found this bug while Playing in the Local multiplayer mode.
Climbing the ladder incrases the height the player is and it never stops increases so the game thinks i'm going really high.
I keep climbing the ladder up and down at the same height and the damage increases depending how long I climbed it. The other players keep dying because this bug because when you climb down you get the fall damage when you stand on the surface with the ladder even when you climb up.