You can use a simple bat file to compile, as follows:

• • Download and unzip the compile_model.bat file from the compile_model_bat_file.7z file.

  • Change the path (the red text) in the following line of the file to point to where your L4D2 game is installed:

  • SET Left4Dead2PathRootFolder=C:\Program Files (x86)\Steam\SteamApps\common\left 4 dead 2\

  • Double-click compile_model.bat file to run it.

  • Choose from the two compiling options.

  • When done compiling, close the bat file by pressing the X key or clicking the X button in the top-right corner of the window.