Principal menu, the work had be to agile, for that i made a matte painting with 3d elements and photographs. Finally they did not use it.
Principal UI, Re-design to the all old UI, the new has most “flow” and this is appropriate for WWI.
The map, was a complicated hard work, because have a big level of detail, have a 3 cycle times, Winter, spring and summer.
Some elements, the cities have differents states of evolution, they are made in 3D.