I wanted to like this map. At first, it seemed like a cool idea. But once you actually start trying to use the map, it's lack of functionality becomes apparent.

-Minimal roads leading to extremely bumpy mountain paths (unmodified heightmap terrain so calling them mountain paths is a bit of a stretch). This could be a plus if you're looking for some fairly extreme terrain to drive around on, but for everything else, it just made it hard to get around.
-Small build area.
-Sections under the map are randomly hollow, which can cause wheels/props to become stuck.
-I experienced a glitch when exiting the tunnel in a simphys car, where the car became stuck in mid air and unable to move? Not even sure what could cause that, other than some weird hammer error, as it happened exactly on the border where the tunnel leaves the mountain.
-Terrain texture feels very noticably unrealistic at this scale.
-No trees/plants/etc so it feels like you're playing on a zoomed in google map that hasn't been modified enough to be vehicle friendly.

That said, it does have it's good points.

-Full sky area for aircraft.
-The build hangars function and even have auto opening doors.
-I can see someone wanting to test their ACF suspension on this map. Just be mindful of the tunnel exit.

I like the idea of taking a height map and making a map based on real terrain. But after playing around on this for a couple hours, I found myself struggling to find things to do, even with it on a server with other players, as it punished most of my vehicle designs, while not giving the rest much to interact with or see. The map obviously isn't designed with running around on foot/RDMing/etc either, and attempting some kinda vehicle combat here would be sketchy due to the spawn area choke point, mobility concerns, and not a lot of peaks/natural structures for aircraft/vehicles to hide behind.

So overall, neat idea. But I'd enjoy it more if it were refined/designed more for gameplay in mind, if that makes sense.