Add British, Germans, Soviet and any future countries to the Practice Range

[mighty forge]

If you are new to the game, having the American works fine in getting used to the different classes, vehicles and weapons to learn the game.

However, it would be better if the British, Germans or any future countries that are added be included in the Practice Range so that players can get used to those guns as well as that country tanks.

[devout spire]

This is already confirmed as happening if you read the dev brief, it's only the Americans at the moment because it's the first iteration of the practice range