ANSWER: If your copy of Crysis 2 isn't patching automatically, please check the name of the folder where your Crysis 2 files are saved.
?If your folder is named "Crysis? 2 Limited Edition", rename it to "Crysis 2".
?After renaming your folder, run the patch.
?After running the patch, rename the folder back to "Crysis? 2 Limited Edition".
Your game should now be properly patched and multiplayer content should be accessible.
I can't find a folder named "Crysis? 2 Limited Edition" any where except in the Uninstall screen in my control panel. I am not allowed to change the name, only uninstall the program.