THIS IS FOR XBOX ONLY! I'm not including ps3 or pc.

Reasons why I believe halo 4 will sell more:

Mastercheif and Cortana will be making a return.
The start of a new trilogy
2 added races
many new guns and br is back
spartan ops
etc etc etc

All in all, I think people are just more excited for halo 4 over blops2. A new cod comes out year after year, but I find it's somewhat a repeat except for some added extras. Halo on the other hand, is bringing a lot of new things to the table.

Another reason is the pre-order sales:

name... 1week before launch....21weeks before launch...total sales
mw3.... 2.44m..................263k....................14.14m
blops.. 2.06m..................109k....................13.36m
reach.. 1.62m..................98.8k...................9.03m
halo4.. N/A....................378k....................N/A

This follows somewhat of a trend.

I have a feeling that halo 4 will outsell blops2, it might even topple some of mw3 sales. I know many of you think I'm crazy, but there's a much bigger hype for halo 4 than blops2.
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