The giant bleached (more grey) blue box is the starting room. It is really hard to make the map proportional to itself, which is why I haven't done the other half of the map yet, because I don't have a view of the room like I did with the first. It is like with right behind the starting room's back door that is locked having the room with the endless corridor directly behind it (That sentence made no sense, I meant that I saw through the locked door behind spawn and saw the corridor with the room to the endless hallway directly behind it. It gave me a sense of where everything was.). Sadly, there isn't anywhere like that in the second half of the map.