This game could really use an upgrade to its fall damage mechanic. It's a pretty awesome feature from a tactical and thematic perspective, but it's frustratingly underdeveloped.
-There doesn't appear to be any falling animations.
-There doesn't appear to be any damage indicators when someone takes fall damage, or at least you never get to see it because the camera always prioritises something else for some reason.
-God forbid your troopers fall onto inaccessible terrain, as the game bugs out like crazy.
I had the roof drop out from my entire squad once, and two of my troops went into some weird quantum state whereby they appeared to be on the roof but were actually on the ground. I exited and then reloaded the game and one of them teleported from the ground to the roof. He also missed some turns of being able to do stuff for some reason. The other bugged guy was also unable to do anything, until he was shot by an enemy, at which point he regained the ability to actually function as a soldier. These bugs caused a complete squad wipe from an otherwise deathless ironman run.
I love this game, but that one incident reaaaally dented my motivation to keep on playing.