Half-Life 2 never really let the player explore City 17 like I had hoped. The majority of the game took place in some kind of underground linear tunnel. I created a city block template with the idea that different users could each design a city block, then stitch them together in a single map to make a large explorable portion of City 17.

When I run the map in Half-Life 2, some faces are missing, or have the wrong texture applied. Could someone please take a look at this file and tell me what the problem is?
http://www.leadwerks.com/post/lw_cityblock.zip
Thank you.

When I run the map in Half-Life 2, some faces are missing, or have the wrong texture applied. Could someone please take a look at this file and tell me what the problem is?
http://www.leadwerks.com/post/lw_cityblock.zip
Thank you.