For a long time now, my Cod Black ops 2 Mob of the dead zombies froze every time i played on it which caused me into turning my ps3 off. So i deleted all my black ops 2 files from the game data utility and re-downloaded them from my download list,and now every time i go on black ops 2 it shows me a pitch black screen for an hour and i have to turn off my ps3.
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Are you connected to the internet wirelessly or via hardwire? Hardwire > wireless
The file in game data utility is just a patch file so it is not in your downloads list, the file you redownloaded was the maps or some sort of dlc. The only way to redownload the file that goes in the game data utility folder is by launching the game. It comes up automatically if your system is connected to the internet.
Also, if all else fails try deleting the file again and then running options 3 and 4 in safe mode before launching the game and redownloading the patch file.