The nice thing about consoles nowadays is integration of PC-like features. Ever since console manufacturers added broadband internet support and hard drives onto their systems, developers all of a sudden now have less pressure on them to put out a perfect product, as they’ll be able to release patches for the games. In fact, consoles even now support the ability of downloading entire games and just playing them off the hard drive, meaning you don’t even need to go to the store at all to pick up the latest game!
Unfortunately it’s not a perfect process, especially when factor in that some games are ran off of the disc while others are run solely off of the hard drive. Apparently there’s an issue in Europe involving the digital download version of Resident Evil 6 and its day 1 patch. Basically, if you have the digital version of the game and you installed the patch it’ll prevent the game from booting.
At this time Capcom has temporarily fixed the problem by not prompting people to download the patch when it boots up. For those people who do have the patch already installed what you’ll have to do is uninstall the game and reinstall it, and then the game should load. However, until the new (and hopefully working) comes in those players with the digital version of the game will not be able to play any of the multiplayer stuff against disc owners.