Hi - Found this last night - it works great - now working in TF2!!! Sorry don't have the link for the dl's
work.
You will need (2 and 3 apply only if you want the textures):
1) prefabsandfgd.rar TF2 FGD, also includes a few prefabs, and the Portal FGD.
2) fixvtf.zip
3) GCFScape (External link to GCFScape website)
Step 1) Create a new mod via the Source SDK. Name it whatever you want. I just went with the SDK's suggestion, and called it 'MyMod'.
Step 2) Use GCFScape to open ...SteamSteamAppsteam fortress 2 content.gcf and extract the models folder to ...SteamSteamAppsSourceModsmymod. Now open ...SteamSteamAppsteam fortress 2 materials.gcf and extract the materials folder to ...SteamSteamAppsSourceModsmymod.
Step 3) Extract the archive fixvtf.zip anywhere, and then drag and drop the materials folder you've just extracted (...SteamSteamAppsSourceModsmymodmaterials) onto the fixvtf executable. This will convert all textures in this folder and all subfolders to the current texture format. It finishes surprisingly fast.
Step 4) Now all the TF2 content is good to go. Next open prefabsandfgd.rar and extract tf.fgd to ...SteamSteamAppselissakgsourcesdkbin.
Step 5) Launch Hammer with Current Game set to MyMod. Configure it to use tf.fgd, and you're all set.
After building a map, simply put the bsp into your TF2 map directory, and it uses all the materials/models in the official TF2 GCFs. Note that you can't build cubemaps in TF2, so if you wish to do so, you must load the map up in another mod to build the cubemaps.
Have fun!