Microsoft has just announced an exclusive and mysterious contest for Halo 4 fans in Europe. Five Xbox fans in the UK will win the chance to embark on what Microsoft is calling the ultimate adventure into the unknown to celebrate the launch of Halo 4 next month. Exactly what will take place is unknown.

The five fans who win the contest will be transported to an undisclosed location in Europe for a top-secret assignment. Microsoft promises that the assignment will bring the Halo universe to life like never before. Winners of the contest will also get to play the game and more.

Xbox social media channels will be used to offer little to that’s about exactly what will take place for winners of the contest over the coming weeks. If you will learn more about the contest, you can follow the hash tag #halo4experience. I wonder if there’ll be a similar contest in the US.