This mod allows you to zoom in and out on the adventure map by a factor of 2.

I've been enjoying this mod immensely. I agree with everything except the system load. The engine of Heroes 5 isn't capable of squeezing the maximum performance out of modern hardware. There are tools like LA for this, but even with it, Heroes 5 doesn't use more than four gigabytes of RAM. It would be great if there was a way to utilize all the resources of modern processors, graphics cards, and all the available RAM.