I'm conflicted on this.
I was super late to the PS3 party, and when I finally did pick up MGS4, I never got around to playing it. I got up to meeting SIGINT, and then never touched it again.
I've played through and really enjoyed, storywise and gameplaywise, MGS3, MGS2, and Peacewalker. I also know the major plot points from MGS1, but haven't played much of it beyond a rental of the Twin Snakes once.
Is there some stuff in MGS4 besidesthat I would be really missing out on if I never got around to playing it? I have my PS3 packed up already, and I kind of want to just jump in to this when it unlocks.nanomachines, and the ending scenes in general
I've been told that Rising neither spoils MGS4 or requires prior knowledge of the series to enjoy.
I haven't played MGS4 either, I sat this entire console generation out until I picked up a PS3 this last Black Friday.