Labs Basic greybox

I used the map I created to Greybox the lab. What I have done is made sure that not all the walls are thick but 1 sided. the player won't see one sided walls as they are faced towards the player, thus saving polygons.

My only problem is that I feel the labs should maybe be more maze like forcing the player to get lost in game, where he could unexpectedly be faced with a monster in the dark. The labs then, are subject to change.