Next week Halo Reach multiplayer beta drops and there are alot of people who can't wait. But will this beta be the end of MW2. I think yes and no because MW2 is a very good game. Halo reach will bring millions of xbox live players to play it but I think its kinda a spoiler, and there is the chance that it would get boring like ODST. Although the halo games sold over a billion copies world wide some people do not even like the game and may of these people play COD instead. When halo reach beta comes out there will be a drop in Call of Duty players. But many people have to consider it is only a beta and it might end May 19th still leaving you to wait till fall to play the full game. Even then when it comes out it will most likely be the most played game on Xbox, but still have to consider MW3. So halo reach will do some damage on the popularity of MW2 but there still are greater things to come.