Yes, you at least need to play Metal Gear Solid 3: snake eater, and Metal Gear Portable Ops. The order of the games is, MGS3, MGS:PO, MGS:PW, Metal gear (msx), Metal gear 2 (msx) Metal Gear solid, Metal Gear Solid 2, Metal Gear Solid 4 This how the story goes chronological, You can download MGS from the PSN worth every penny.
Sadly yes... But you can always find out the story from an outside source so don't worry.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.