How Much Will Halo Sell on First Day/Week?

[quisuis]

US first day= 1.2 million
UK first day= 900 k

Worldwide first day? 2.2 million

US first week= ? 2 million
UK first week= ? 1.5 million
Worldwide first week= ? 4 million

it will get that high sale coz of xbox 1 bundle or else it would be alot lower