Hello here!
First of all, I'm French! google translation but my friend!

I just called to your ultimate strength in what you are doing ie mapping.

I want to say that my project is very serious (see the enumeration of course)

So I explain Fan of Arma 3 wargame simulation Bohémia creator of the game in question provides an opportunity for the community to create maps for the game, but also creates mods and so on.

Me what interests me is the mapping. It is very simple to do mapping on the software provided but requires a lot of knowledge in 2D ie the satelite map / heightmap / mask.

Let me explain in a few words.

Satelite map (real or fictional map)
Heightmap (for relief)
mask (for soil textures)

A small screen (made by pros) to show you how to dial is:


Click image for larger version. 

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and the porfolio of course, I have great respect for these people! and I would like to get to their level!

https://imgur.com/a/7Cuud

If you look at the image center is the mask which will allow us to add different texture compared to the satelite to match the textures area.
Ie the green 0/255/0 = grass
the color orange / red = gravel or rocks

My project involves more than the RP (role-playing) a war game, so I want a civil rather map with 3/4 Civil cities, forest, islands why not.
in Game 1 pixel = 1m plus satelite map is of good quality over the mask is easy to perform and distribution of textures will be perfect.

If you are interested let me know!

I could explain in more detail what was only a small chapter.