http://www.gangleidersden.com/downloads/modelpack/
Open the file to where it shows the files like Models Materials ect ect
Put them in
steam/steamapps/steamname/garrysmod/garrysmod/
Open the file to where it shows the files like Models Materials ect ect
Put them in
steam/steamapps/steamname/garrysmod/garrysmod/