Yeah, Im with unbreakable on this one. Constructive critisism is the key.
Allthoug I would probably love to play a mod that has that level of bad mapping. It's probably related to my passion for B horror movies.
It doesn't really matter if he's 11, that's still some shitty ass mapping. The people who play the mod wont know that he's 11, and they wont care. There's just no excuse for bad mapping. So just keep on working on them.
And you are forgetting the most important thing; logic.
When you're in a building, you don't have HUGE doors leading to the reseption, they are usualy slightly bigger and sometimes made out of glass, but they're not huge military style doors.
And you don't have random zombie-pits in hallways, nobody would ever build something like that! It's not the right thing to do here! Every door, every room and every tiny little thing must have a reason for being there. It needs to fit in. And you don't have those long hallways that leads to one tiny room in real life. If you'd have them, they'd probably have a bunch of other doors leading to other rooms aswell.
But there's still hope.
I'll make you a deal here, if you're upcoming media looks better. and the media after that looks better than the last. I will make you a soundtrack.
I can't help with mapping or anything, Im already swamped in other projects, my job and my social life. But I'll make you a soundtrack if you improve the overall quality of the mod.