This one is even larger than the previous template map released at AlfaMods. The size of the dem.png is 4097×4097 pixels, and the terrain uses a unit per pixel set to one unit per pixel. As you can see, there will be a different type of terrain, but it is still a template map meant for sandbox play and modding.
The map uses upscaled weight layers of 8192×8192 pixels. It is so far playable in FS25 with no errors other than the default vanilla warnings. It will very likely be released this weekend.
Here are a few raw screenshots…


This map is now LIVE. https://alfamods.no/mods/fs25-4×4-km-prefab-template-map-green-peak/