I decided to take some quick screenshots to show you the areas that bug me the most (sorry about the gun in the way, did this while eating lunch):
http://dl.dropbox.com/u/27652498/cp_gothic_b1a0000.jpg
This cover makes spawn camping very easy. I know I personally killed you, Ezekel, two or three times on your way out of spawn trying to get to C and D through B. If Blu rushes up the ramp to kill the spawn-camper, he can just drop down through that hole nearby and either flank or escape. I don't really have a good suggestion on how to change this, though.
http://dl.dropbox.com/u/27652498/cp_gothic_b1a0001.jpg
I
always think I can jump over to that other side because of that empty part of the floor. I can stand on the tiny ledge leading over to it, so why not there? I would either change the player clip or put a box there so you can tell you can't stand there. I tried to jump over instinctively the first time, hit the clip, slid down the hole, and got riddled with boolit.
http://dl.dropbox.com/u/27652498/cp_gothic_b1a0002.jpg
This is an epic journey of medium health packs. Starting here, coming out of Blu spawn near B...
http://dl.dropbox.com/u/27652498/cp_gothic_b1a0003.jpg
... to here, right next to B...
http://dl.dropbox.com/u/27652498/cp_gothic_b1a0004.jpg
... to here, right by the corner leading to E. As a GRU-wearing Heavy, you can get from Blu spawn to E very quickly without losing any health because the medium health packs are spaced so that you never lose more than about 40 HP between them. I know because I did it, over and over, during gameplay, without a Medic or backup, and could get behind Red's lines with ease. When the main battle is focused at C and D, a lone Heavy can follow this route right to E and do major damage.
http://dl.dropbox.com/u/27652498/cp_gothic_b1a0005.jpg
Even with the boards on it, I still think this is supposed to open at first glance. Also, how are the boards attached? And how would they hold this gate shut? And why is an outdoor gate on the inside of a castle?
http://dl.dropbox.com/u/27652498/cp_gothic_b1a0006.jpg
Maybe it's just me, but when I see crates and boxes, I assume I'm supposed to be able to get up on top of them, but there is no way for most classes to jump up onto these. There's a circuitous way going from that little crate to the edge of the tiny wall to the big crates, but I don't see why there can't be another small crate next to the big ones on the left here.
http://dl.dropbox.com/u/27652498/cp_gothic_b1a0008.jpg
Same problem here. It looks like there is a height progression leading up on top of the crates, but that first crate is too tall to jump up onto. Why not replace the barrel with a small crate?
http://dl.dropbox.com/u/27652498/cp_gothic_b1a0007.jpg
I like how these doors open, but when they're all the way open, it's really easy to get stuck between them and the wall while backpedaling. They don't look like they'd stick out far enough at first glance, and when you're between them and the wall and facing away from the door, the door doesn't come into your range of view, so you can't tell what's blocking you. It's not really a problem, but it is very annoying.
http://dl.dropbox.com/u/27652498/cp_gothic_b1a0009.jpg
Just a beta art design thing, but there definitely needs to be something on those roofs. This looks like a prison, not a castle.
http://dl.dropbox.com/u/27652498/cp_gothic_b1a0010.jpg.
I think everybody hates this coffin here. The displacements aren't wide enough for the slope to have any real effect on gameplay; they're just sharp enough to get stuck on while strafing, and the dirt texture makes it difficult to see out of the corner of your eye. The only purpose this seems to serve - aside from a visual location for the ammo and health - is to briefly trap players who aren't paying attention. I hear people complain about this literally every time I play the map (at least, every time we get to C).