Well, me too, so here are the major differences: There is a mistranslation concerning the behaviour of the mutants, hope your group adopted the English rules there. Otherwise the mutants are very strange...
Then, in the German version, you are not allowed to move troops to and into the Fallout zone, while in the English one you are not allowed to move troops through it or place troops in it at the beginning of your turn.
Then, in German there is an event which allows a player with the biggest population either to place some troops in his cities or take a new event card randomly, in the English version you are allowed to choose it.
Guess that were the major mistakes.
But ask whether they have adopted some of the original rules, because we adopted the first and third rule, while we left the second (well, it did not matter in any game :D)
DerWaldschrat
P.S.: You can try to insist on playing with the bonus cards, since an opened envelope is an opened envelope ;)
Then, in the German version, you are not allowed to move troops to and into the Fallout zone, while in the English one you are not allowed to move troops through it or place troops in it at the beginning of your turn.
Then, in German there is an event which allows a player with the biggest population either to place some troops in his cities or take a new event card randomly, in the English version you are allowed to choose it.
Guess that were the major mistakes.
But ask whether they have adopted some of the original rules, because we adopted the first and third rule, while we left the second (well, it did not matter in any game :D)
DerWaldschrat
P.S.: You can try to insist on playing with the bonus cards, since an opened envelope is an opened envelope ;)