I created a map in gf and it works when i try to play it single player but when i try to play that map with a friend it gives the error do not have proper file, it gives that error to my friend when i try to host it, i emailed him the map and he can play single player but if he trys to host it i get the same error that he did earlier, he also has gf and same patches on his game that i do, is there something in the settings i missed or what else is wrong?