If you havnt played the series, go out and buy MGS, MGS2 and MGS3 subsistance (metal gear 1 and metal gear 2 solid snake included) then play this game, you will be in for a story that (metacritic.com)
there is not much replay value to the game itself but subsistance comes with bonuses that ad to the game. (metacritic.com)
Most of them leaving behind the misery of poverty, subsistance farming and vulnerability to climate! (judithcurry.com)