I get this when i try to launch this game.I copied bin from source sdk 2007 to alien swarm's bin.Then i get unable to load materials/console/background01.vtf error in hl2 directory.I made hl2 folder(didnt have it) and maked folder called materials inside,and then made another one in it called console and copied background01.vtf from swarm to this folder.Then i get startup_loading.vtf and i make 1 file called like it and put it there.Then i get unable to load gameinfo.txt in subdirectory hl2.Then i copy that file from swarm folder in there and then library client error.I think if i fix library i will get it working.Give any ideas.Ty