I want to suggest some changes, of course these are just suggestions given by my point of view, according to what I think it's best.
I'll start with the first things i notice coming out of the respawn:
http://i.imgur.com/osCWzYc.jpg
i don't understand those pillars, it was better before, also why don't remove that fence and that step and put something like a barrier with glass
http://i.imgur.com/AJj1HEL.jpg
This is pretty simple, moving both ammopack and medkit a little on the right and a little towards the character, and i also suggest to invert their position, putting the health nearer the entrance and the ammopack farther (this will prolly help demo's rollout)
http://i.imgur.com/P0Yt9Iw.jpg
What the hell is this thing? :D
http://i.imgur.com/wThkykB.jpg
this is both aesthetic and it also makes a lot of things easier/faster, and makes that corridor look bigger
http://i.imgur.com/4mcPu24.jpg
this modification is doable whether or not you remove the stone arch, flatter/normalize the floor and put a wall/fence/barrier, whatever, that divides the corridor from the rest of the zone
http://i.imgur.com/LQBtroh.jpg
This is purely aesthetic, Why is this shutter so big? maybe to help demo's rollout? i'm not sure it helps a lot, but if it does well it's fine then
http://i.imgur.com/ik3LtTL.jpg
This does not need an explanation :>
Now for the middle i have different suggestions, the best i think it's to remove completely that kinda house/cave entrance, whatever
http://i.imgur.com/gr4XFw4.jpg
and just do something like this:
http://i.imgur.com/OJO3IRC.jpg
or you can just make the whole thing like in b10pre1 version, which was better
That's it i'm done :D