Complex is still being blocked out, but there is a gameplay change that is strongly related to Complex that you kids should know about.
In Beta 4, the player's radius is reduced from 16 to 12 units. This moves us from Source's idea of how fat someone is to Goldeneye 007's idea. This is also good news for you, since it means tight areas like the pillars room in Complex will be something you can navigate without getting hung-up all the time.
This also means you can have a fight in a hallway beyond simply banging into each other and holding the mouse button down, since you can slip around people much more easily. Additionally, this means you can get a lot closer to the walls, which will let you slip by Proximity Mines and have an easier time taking cover from bullets. It will be a bit of a change from what you are used to, but then again, Beta 4 is changing a lot of things.
Shifting to the thread's intended topic, the scale for Complex is probably going to be about 104%. That's a bit of a jump since Library and Temple both came in within 1%, but shit happens. For those who are concerned I might forget, no, I'm not going to forget about how some of the holographic walls are one-way see-through and others aren't. I know it's fucked up in the current Complex Classic and Neo, but as of vc_complex, fixed. Regarding the Neo... no comment.
Oh, and while I'm not going to ensure that it's possible, I'm not planning on doing anything that would prevent skilled players from hiking Grenade Launcher Projectiles over the walls and into neighboring rooms. I figure Complex has open ceilings for a reason, so the skybox will give plenty of headroom for high-angle surprises. After all, a straight-up GLP is like a timed mine with pinache.