Source:IGN Metal Gear Solid 3 Subsistence already has enough bonus content to ensure purchase by even those who cleared MGS3 when it saw release last year. But Konami and Kojima Productions have decided to add a bit more insurance, in the form of a trailer for a certain Metal Gear Solid 4. A pamphlet handed out at the PlayStation-sponsored Akihabara Entertainment Festival in Tokyo (we’ve scanned t