I haven't played any of the previous Metal Gear offerings so am coming from a standing start on this one. The main game is a pretty solid first person “shooter”, although there's normally very little actual shooting as you are usually vastly outnumbered and so the only way to succeed is sneak around ambushing enemies from the shadows. Vast mission areas and you can pretty much accomplish the missions any way and in any order you like. However, there is obviously some big backstory i am not aware of because every now and then now and then theres a cutscene that is truly bizarre: lots of ghost-like beings that can vanish and instantly teleport around, some weird guy with no face, people die instant and inexplicable deaths, that sort of thing. Odd. Anyway if you can ignore all that, a good game – recommended !