That's some improvement,but you're still doing the same mistakes:
First,there's STILL one small spawnroom with only with door. This can still lead into a big respawnkill. But now you made a really big sightline for both teams with this.
Still,there's only 2 small health packs... and that's it. No medium/full health kits,or even some ammo at all. Map's still a little bit "cramped",with not too many options to flank and such.
I made a crappy-ish idea for your map. Dunno if it can help you.
Basically move the existing door a liiiitle bit to the left (or just leave it there. xd),expand the respawn room and add 2 new doors. And also made a whole new area (probably a medium-ish size) on both sides. The green-blue-stuff colour are just stairs going down and connecting to the CP. You can either go downstairs and then to the CP or go up again (derp),or just go straight using the path on the left.
For the stairs I thought something like this. Let's see what you can come up with.
And well,just mirror it for everyone. In every direction. MIRROR ALL THE THINGS!
So yeah. Maybe the fight goes better on top of the metro rather than below it. You can even connect both green paths on the surface and make a random hole on top of the CP for a SNEAK ATTACK!
I dunno. Just some random ideas. Your map is really good. Keep up that good work. o3o