I overrated. I love the game best shooter out this year such a flexible game.
The thing i dont like is the load times and time it takes to find a decent multiplayer game. Once you get a good server its all fun. Pretty flexible little content that feels missing.
Air stuff take some serious skill, if you want to fly be prepared for a huge challenge. The shooting is pretty damn fun.
I have to say the special forces expansion pack i would rate a 0 with this being a 10. The special forces was just a cheap production to leech money off this great game.
Not too realistic and not too unrealistic and keeping an action feel.