MGS4 is only going to surpass Halo 3 in overall sales if the PS3's userbase expands.
One major advantage PS2 had over Xbox was that it had a considerably larger user base. The exact opposite is now true. Looking at how sales faltered with MGS3 (honestly, this "prequel" business is a load of BS.) I doubt MGS4 is going to be able to beat a game that saw the largest launch day in entertainment history. It'll do good, but not Halo 3 good.







