It is essentially a glorified demo. Last gen, this would have been a free download as it does only have one map and one, ok technically two, main mission/objectives. There is some replay value to it though as there are side missions which are unlocked as well as a Hard difficulty after you compleate the main mission. I encourge anyone who enjoys metal gear solid games to rent this title, but do not buy it. (Thank god we have gamefly for games like these!)
I still score it high because the graphics are impressive and there are so many different ways to accomplish your mission. If Phantom Pain is anything like this, we're all in for a treat.
I would have been livid if paid for this game... Who releases a game with only one campaign mission! Graphics and gameplay are good but epic failure to release such a short game and then to charge $30 for it. This is just a glorified demo.