Leaked Bungie contract basically confirms Fall 2013 Xbox 720 release

[VGKing]

d21lewis said:

Dallinor said:
Why alienate a section of the market by releasing only on the 360/720 for the first game? Hasn't seemed to have worked out too well with other IP's this gen.

Saints Row, Dead Rising, Bioshock, Mass Effect, Call of Duty 2, Lost Planet, Ghost Recon Advance Warfighter

The only real success there is Call of Duty. But COD 2 came out as a 360 launch title while PS3 didn't exist yet. 
Mass Effect sells so much less on PS3 though. It's clear that the 360-exclusive ME1, and late ME2 port damaged the sales of ME3 on PS3.

If all 3 ME games were to be released on PS3 and 360 simultaneously the franchise as a whole would have been much more successful than it is now.