6 million fw ww
lifetime 13 million

I found a way to calculate it
Take ODST sales
Double them
???
Profit

I'm not sure if it will outsell Halo 3.

But it will come close.

Week 1: 3 mill

LS:8

15 million shooter fans will enjoy this game lifetime.

4.5 First Week

4.4 million first week and 12 million lifetime

5 million should be easy FW

People are seriously underestimating this game. MW1 sold less than Halo 3 lifetime, and MW2 got nearly 5 million FW on Xbox 360 alone ... how can a game that is looking better than it's predecessor by quite a gap (unlike MW2) not outdo a mutiplat game like MW2?

Halo 3 has around 11 mill sold and around 16+ million people have played it (used sales ect) I expect a solid 5.5 - 6 mill first week.

I could be totally off, but I'm basing my prediction on MW2

First Week:
NA = 3.2m-3.8m
Others = 1.2m-1.8m
Japan = 50k-100k
Total = 4.45m-5.70m

LT:
NA = 6.0m-9.5m
Others = 2.2m-3.8m
Japan = 70k-150k
Total = 8.87m-13.45m