Alright assuming this is your first map right? there are a few things I'm going to point out, with pictures to help of course
I'll first start off by telling your about the spawn doors, maybe you've seen this already but move them over so nobody can shoot through.
I had went straight to B for some reason
and I seen that you have these wood walls up well I thought they looked good but we have a problem with this, picture will explain.
I do like B but maybe if you put stairs leading back up to the second floor that would be great!
I was looking around and everything seem to be in order except the paths from A to B, I see that they are straight which gives snipers advantage. Fix up the paths a bit
Also I did notice some brushes are not aligned with some of the walls and such. Touch them up a bit.
This one you can see pretty well.
Bit harder to see but it's there.
This one is at the top.
This are easy to spot.
Yeah so look for things like that through out your map, I've seen a couple more but I didn't want to overload this with screens D:
Also add some more lighting then having one shining really bright within some rooms.
Also the exit of the blue spawn are really high, I don't know if that's a problem to anyone else but jumping off those kills a bit of health.
I'm not sure how the map will play but we'll have to see!
good luck!