After being rescued from the Blood Harvest you find the driver of your rescue vehicle has become infected, and has crashed behind a massive asylum. The Trans-Allegheny Lunatic Asylum.
The main asylum sketchup models is mostly complete. I still have to model the backside. Then more work to import this into Hammer.
Comparison photo:
Flickr.com
Damn... Sketchup is harder than Hammer for me...
I find the exact opposite. I don't particularly like the hammer editor. I have been spoiled by the CryEngine Sandbox2 editor.
I find sketchup very natural to use. It makes prototyping a breeze, and then polishing stuff up isn't too hard.
But then again I have only been using hammer for a few months and I have been using both SketchUp and SandBox2 for years now.