This is my first METAL GEAR game , ever . this game is truly beautiful , not from the design and graphics but from the story , the way it's moulded into our heads and hearts . I don't have anything negative to say . In this game the story isn't what you think it is , i've talked to many METAL GEAR fans and nobody felt the same way about the story , there is no set ending . you don't need any prior METAL GEAR knowledge to love this game .
but if you've never played a METAL GEAR SOLID game before , definitely do some researching on sites like game wikipedia and other before getting this game , just so you can understand the story , there is also a video on youtube called the complete METAL GEAR timeline so definitely give it a watch . I believe this is the best METAL GEAR game out there .