Don't worry the maps don't work yet...... if you try to play on the new maps here in the US ... your PS3 will Lockup! .... so yeah... is like is not out yet....
You do not have to delete the files before reinstalling them. In fact the only way to delete the files would be to delete the game data itself. This would cause you hours of downloading time having to redownload all of the large patches released since launch. So don't delete files. Just go redownload and install Close Quarters off the PS store.
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