Several years ago, it felt like every first-person shooter was set during World War II, and the saturation really started to turn people off to the genre. Then, Call of Duty 4: Modern Warfare came along, and changed everything. Now, it seems like modern/near future military shooter has passed the tipping point, and we long to return to blowing up Nazis again. Enemy Front is there for that purpose, and the cycle continues.
The trailer above dips a bit into how the story will be told. Radio journalist Robert Hawkins tells about his time documenting the lives of various individuals as they fought the Germans. He specifically notes that he has been covering the Warsaw uprising, but Enemy Front will cover a good portion of the European theater, including France, Germany, and Norway as well.