Gotta ask. Why would you try it on normal difficulty? As a fan I would expect disappointment on easy mode (normal), from what I read it isn't possible to sprint through to objectives on the harder modes as you get cut to pieces (as it shoudl be). Normal is really just a polite way of saying easy and is meant for beginners.
Because I have a life outside of playing games?
And please, don't start with the "if you didn't play it on its hardest setting you may as well have been playing it on easy" while difficulty elitism might be your bag, it isn't mine.