To celebrate the launch of Halo: Combat Evolved Anniversary Microsoft has commissioned a run of limited edition T-shirts.

We're giving away 60 of these, and all you have to do is answer the question above to be in the draw!

About Halo: Combat Evolved Anniversary

Developed by 343 Industries in partnership with Saber Interactive and Certain Affinity, Halo: Combat Evolved Anniversary is a re-mastered version of the original “Halo” campaign, packaged with some of the most memorable multiplayer maps in “Halo” history.

With a bounty of new features, including cooperative play over Xbox LIVE, six re-imagined multiplayer maps and one new Firefight mission, a Classic graphics mode, Achievements, Kinect and 3D support, and new challenges and story to uncover, Halo: Combat Evolved Anniversary is a celebration for veteran Spartans and new fans alike.