its not even MGS.
Its MGR. They just use the name MGS to sell and market it.
Its NOT a main title for MGS because:
1) does not have Solid Snake as the main character
2) will not play like the classic MGS titles
3) does not follow the same story as MGS titles
360 fanboys = owned.
"I don't have time to play video games anymore, but if I did, I would definitely choose the PlayStation 3 instead of the 360" - President Barack Obama