The best known D-Day is June 6, 1944
http://en.wikipedia.org/wiki/D-Day_%28military_term%29
D-day... I think I got it. They might be inventing the time machine, couse DNF engine is too old already. Think, they invent the time machine, then they go back in time to D-day, year 1944, and release the game. That would make DNF the best FPS for next 60 years or so
