I fell through the Map when i was going through the Floor in the Surgery Section. Just after the going down the Stairs Portion.
I didn't want to restart, because it takes a while to get there, i'd add a big Box Collider under the Floor, as a failsafe, i think just relying on the Mesh Collider, sometimes makes the Player go through something unintended. Maybe he gets pushed into the Floor, when walking into a different Mesh/Wall idk.
Also you can see through the Character Body when looking down, i'd just push the Camera forward a bit, i guess the Head Mesh was just deactivated for full body awareness.
Good idea and Narration though.