No revenue estimate for XBOX — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $25.6K — a different platform, not this one.

METAL GEAR SOLID: MASTER COLLECTION Vol.2

This second installment to the collection features “Metal Gear Solid 4: Guns of the Patriots” and “Metal Gear Solid: Peace Walker (HD Collection version),” and also a digital soundtrack and "Metal Gear: Ghost Babel" as bonus content.