Just throwing it out there but could it be (and i'm no techie) the different chipsets in the various 360's that are causing some to have problems and others not, do gamestesters test the games on the latest 360's with the latest chipsets onboard? My 360 is around 2 years old (my 7th due to RROD's) and obviously does not have the same chipset as the shiny new 360 slims. Can someone reply saying this is impossible or can people put what 360 they have and if they are experiencing issues, list them.
My 360 is a 2 year old white arcade model with the Falcon chipset and the main problems i have are:
Freezes around 2 times an hour
DLC save issue in various places
Cant enter The Strip
Numorous graphical gliches(guns floating 2 feet in front,characters getting stuck in scenery etc)
Heres how you tell which chipset you have
[IMG]http://i166.photobucket.com/albums/u102/Hainesy74/Xbox360_Model_Guide.jpg[/IMG]