I have managed to convert BTS Rhye's Earth map with enlarged Europe to work with BTS as normal scenario.
I have removed all marshes and I have copied plots in Rhye's Warlords Earth map with normal Europe. Then I set teams to random locations and random types. Now You can choose any civilization from BTS to play with and after game begins You must go to worldbuilder and set starting cities for all civilizations that you choose. Then save your scenario and play the game on this great map.
Enjoy
Rhye - I hope thats OK with You.
I have removed all marshes and I have copied plots in Rhye's Warlords Earth map with normal Europe. Then I set teams to random locations and random types. Now You can choose any civilization from BTS to play with and after game begins You must go to worldbuilder and set starting cities for all civilizations that you choose. Then save your scenario and play the game on this great map.
Enjoy
Rhye - I hope thats OK with You.