I am trying to design a payload map, and part of what I want to do with it is make it in a bit more of an urban environment. However, most of the models that current exist for tf2 really don't fit the setting I want to try out. However, in L4D there are a lot of those kinds of models. I was wondering if anyone has done anything with the modding for L4D, and if you know if you can use the models from that with maps for tf2? I have no idea where to start looking for this, so I figured I would ask.