I'm not sure if anyone noticed it but there is an interesting article in BlenderArt magazine (ISSUE 39: SPIRIT OF EXPLORATION): http://blenderart.org/issues/ It is written by Miroslav Horvath (former(?) World Design Lead at BIS) and concerns using blender as a tool for supporting terrain editing process for BIS games. Some ideas aren't new for me (as sculpting terrains - a very interesting attempt can be found here: http://forums.bistudio.com/showthread.php?125952-Grebbeberg-WIP-terrain), but of some I have never thought of (eg. texture paint - the satellite one - directly in blender; I wonder how strong computer one has to have to do this - I had troubles editing more complicated 10240x10240 sat masks in a 2D graphics program; the technique is similar as here, I suppose: ).I've also found a movie about this: (it really starts about 8min 15sec)I hope someone will find this as interesting/amazing/useful as I.