Well you've made a new area in your map, but it doesn't improve the gameplay really. The architecture in this area is nice, lucifix, but the tunnels and the rooms are way too big... and it has only one exit. More exits and entries in the two large rooms and in this new area would improve the gameplay, making this new area a bit smaller would improve the gameplay too.
Lighting looks better in some places, it's still missing a visible lightsource here and there though. The lava and the hallways to the large rooms are still too dark and the room with the pulse gun looks too bright now in my opinion.
The bots get stuck at the stairs in the room with the minigun, you should follow a bot in spectator mode to see if they get stuck anywhere, move the pathnodes around in those areas and check again in spectator mode till it's fixed.
The movers still have an ambient sound while they're not moving, like I said before, you can fix that by going to the 'Properties' of the movers, then to 'Sound' and clear the 'AmbientSound' there. It will only remove the sound they make when they're not moving, they will still make a sound when they open and close.
