hey guyz can somebody explain the basics of game files to me . every game after it releases has many patches,mods,consoles,walkthroughs etc etc . can somebody explain in detail what are these files meant for and their uses . i play a lot of games but never installed any of these files for any games i have played till date. i have played hl2 latest. now i came across a site offering many hl2 mods/patches/walkthroughs etc but i could not figure what are they meant for. do they have use in single player gaming ? plz make this post useful for all newbies like me who will do not have any idea about all the jargon games use.