I played the map on Euro gameday and I had a blast on it. I took a look at a5:
-Making the area at A bigger is good thing. I think it was too small before.
-Red spawn is problematic:
1. It can be easily spawncamped.
2. It's very close to the cp. (although capping time on C is short, it somewhat balances the proximity of the spawn out)
It looks like you can squeeze through there, but you can't. Move the rocks closer to the wall, or, well, farther away.
This side structure has no 'purpose'. Just add a door texture in front of the stairs to logically 'connect' it with the map.
Just a suggestion: Why don't you add some props there to create an additional crouchjump route up to the cp? I think the red truck would perfectly fit there.