How do i add a terrain to the editor

[Westy]

Trying to make a custom map, but have found nowhere that explains how to turn the map into a mod to use on the editor.

[Sparky Sparky Boom Man]

For real life terrain, you need to find the heightmap for it and process it with program called L3DT to re-specify the height and things, then export the heightmap into format that Terrain Builder can use.

[Gunter Severloh]

Take a look at my Compilation list for map and terrain building:

Map/Terrain Building Guides & Tutorials Compilation

https://forums.bohemia.net/forums/topic/229182-arma3-mapterrain-building-guides-tutorials-compilation/