In the first person camera you need to set a Collision Material. This is to detect where your ground is supposed to be, I susualy make a separate mesh for this purpos, so i can have smoother transitions in stair and such, insted of poping up each step. I think you can just turn of visibility for this layer to make it not show up as a regular mesh in verge. The gaze Height setting is how high above the ground your camera should be. Story Height is how tall your storys are, basicaly how far down it will check for ground(tweak around with this a bit, cant remember exactly where it measures from), this is so you can have multiple storyes, where you wont fall of if you go outisde the mesh on the second floor for instance.
So in short take a look at those settings and place your camera somwhere ehrer it will find the mesh with “collision material” on it and it should snap into plase as your scene strats.
BTW: collisions with this camera is not like physics collisions, it will only shoot a ray straight down to see if it sees a mesh with the collison material attached, so walls are basicaly going to be the edges of those meshes, looking top down.
Hope that helps.
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