According to Ryan Payton, who worked at Kojipro at the time, MGS4 was ruinning on a Xbox360 dev kit and staff + Konami wanted the game to release on it, Kojima refused
Konami Considering MGS4 for Xbox 360 | WIRED
:format(jpeg)/cdn.vox-cdn.com/uploads/chorus_image/image/12571661/mgs-legacy-11.0.jpg "Metal Gear Solid: Legacy Collection not coming to Xbox 360 because data size still an issue - Polygon")
Metal Gear Solid: Legacy Collection not coming to Xbox 360 because data size still an issue - Polygon
Metal Gear Solid 4: Guns of the Patriots - Wikipedia
Metal Gear Solid 4 out in June along with MGS 4 PS3 bundle – Destructoid
MGS4 Raiden Custom Body on Xbox 360 Price
Metal Gear Solid 4 Could Have Come to Xbox If Kojima Had Wanted To
The closest we're ever gonna get to Metal Gear Solid 4 on the Xbox : r/xboxone
Five reasons why Metal Gear Solid 4 is not released on Xbox 360, five reasons to be released on the contrary - GIGAZINE
Metal Gear Solid 4 Getting PlayStation Network Release - GameRevolution
Metal Gear Solid 4 could've come to Xbox 360, but it was too complicated | GamesRadar+
360 MGS4, next GTAIV DLC topping Microsoft's E3 lineup? - GameSpot
Metal Gear Solid 4: What 360 owners dream about | Next-gen console // pswi60
Amazon.com: Metal Gear Solid HD Collection : Konami of America: Everything Else
Konami confirms Metal Gear Solid 4: 25th Anniversary Edition is PS3 exclusive after New Zealand shop lists it for Xbox 360 | Eurogamer.net
Metal Gear Solid 4 Could Have Come to Xbox If Kojima Had Wanted To
Buy MGS4 Raiden Custom Body | Xbox
Konami Squashes MGS4 Xbox 360 Rumors... Again - GameRevolution
Comparing Metal Gear Solid 4 to Ground Zeroes is "nonsense," says Kojima - GameSpot
GS News - Metal Gear Solid 4 Xbox 360 debunked - YouTube
Metal Gear Solid 4 Xbox 360 debunked - GameSpot
The Rumor That Won't Die: MGS4 semi-confirmed for Xbox 360? - Siliconera
Konami's MGS4 on Xbox 360 explained | TechRadar
