Edit: just found out toter schlag means dead blow in english
Yeah, this one is fake, as you can see blurs around the map's name showing that it's been photoshopped. Nobody knows when it's coming out. Der Riese hinted all the thursdays in September, but that wasn't true.
I seriously doubt there will be a map pack 4. I mean how many people would play it ahead of Modern Warfare 2. I certainly wouldn't buy it. Saving my money for Uncharted 2 and Modern Warfare 2 DLC. (And my school soccer trip to Manchester in April).