This is a great game play! May i suggest new routes? Such as a blast to the past and the player has the choice to either be sent to ww1, ww2 or present time. A lot of people like the older characters such as Austria-Hungary or USSR. Now I get the whole problem with the Third Reich and Soviet Union but you could always leave a disclaimer that these characters are involved in the game. You can also use an x for the swastika and just a yellow dot for the Soviet. Also props to you because this game is amazing!