"You have to trick it into downloading the file."

Usually if a game has these functions it's to send information. This is how the internet works, a server has files and when a person wants to access them they "download" them to change what the people download someone must "upload" new files. Basically what I think this snippet does is send all the client information to the host of the game and then it's all downloaded by the players. With all this working at once it cause it to look like a real online game. I am also 100% sure this will not effect the update feature because the PlayStation software checks for updates Call of Duty doesn't have an update feature like MAG where the game downloads it, instead the system downloads the Call of Duty update and installs it. Not to crush your dreams but it's not going to do what you want it to do, but it still may be very useful!