Maybe it's me, but my team as blu usually can't get past the first CP in stage 1 (I must have some jinx in me somewhere). The point itself is scattered with a lot of ammos and engies can pretty much camp there most of the time until an uber comes up to destroy them (or a demo throwing grenades at the rooms surrounding the CP). Perhaps you can open up the area a little more and remove some ammo from that CP so it won't be so easy to defend.
After that I think the red team's spawn room needs one more exit (stage 1 I think). Currently it's rather easy to get spawncamped.
After that I think the red team's spawn room needs one more exit (stage 1 I think). Currently it's rather easy to get spawncamped.