How much will Halo 3: ODST sell FW, End of 09 & Lifetime?

[Munkeh111]

yo_john117 said:

Munkeh111 said:
Just a few questions about the multiplayer. I read on wiki that the MP will be basically identical to Halo 3, so will it be compatible with Halo 3? And does it have any new MP features to bring people across to the new title

There isn't actually a ODST multiplayer.  ODST just comes with all the Halo 3 maps ever made plus 3 new ones.  But they do have another multiplayer mode called firefight, which will be like gears of war horde mode.

So can you just play the Halo 3 MP from the ODST disc? Anyway, I think about 4m probably, as most of the sales of Halo are for MP, so I think most owners won't bother gravitating over