Check out Nem's Tools "Crafty" for viewing HL2 BSPs. It might have a polycount feature.
You could also export a .map from Hammer, load it in 3D World Studio, and view the brush polycount.
My guess is most levels use about 60,000 polys in BSP geometry.
You could also export a .map from Hammer, load it in 3D World Studio, and view the brush polycount.
My guess is most levels use about 60,000 polys in BSP geometry.