Just a note that it's not Thaddeus', the map was created by Palpatine. As for removing the civs... I'm not quite sure, but you could always just export the map using the editor.... hit ' then /exportmap palp.txt. Then import the map using /importmap palp.txt. This should remove the civs and then you can place them as you wish... Seems sensible... haven't tested it but it sounds good