Amnesia units?

[Feared]

Set your scale to "meters". Walls are (usually) 4x4 meters for example ~

I have my scale set to imperial but I don't think that's the problem. My walls are 8' high (2.4384 meters). These are not meant to be castle walls but cabin walls. The doors are about 6.5' high and seem way tiny. Why does the scaling seem so off in this engine? Am I missing something? I know in the Source engine a 6.5' high door looks fine. Something doesn't feel right about this. Is the camera attached properly to the 'face' of the player or is it on top of the player? Maybe this is the cause?