I think that it only has 20 missions, so twenty chapters, it disapointed how short the game was, but you don't get bored of it fast, Zelda is a game to buy if your looking for long gameplay, there's the main quests then you have yourself the side quests, very fun and interesting game, you should think of buying it.
Is MOH like Operation Flashpoint where by if you get shot once, your likely dead - or is it arcady - where you can get hit many times and still live ( like COD3 etc )
Initially I was horrified that I bought this game, but after getting used to the controls, its OK. Rent it first and play it for several hours. Its way too scripted though and predictable.