The Halo: Reach beta kicks off tomorrow, May 3rd. You can get in with a copy of Halo 3: ODST, or with a separate download key - which we have to give away.
To be in with a chance of winning, all you've got to do is answer the very easy question below.
We'll pick a random winner from the correct answers after 11am Monday GMT. The beta goes live "late morning" Monday PDT, which means you should get about eight hours in before the ODST hordes descend. Bungie has posted a FAQ on the beta amid all the other goodies on Bungie.net.
UPDATE: The answer is Noble Team and the winner is Andrew Duncan - we've mailed the code to his Hotmail address.