I don't think it will have a great opening week either, after MW2, next CoD and what else, the 360 market will be over saturated with shooters.
But by Halo standarts, not having a great opening week, means about a 2~2.5 million rofl.
If it manages to have a good opening week, let's say being launched aside Natal and supporting it and the new slim 360. Maybe it can be another 4million first week seller.







