I rated this game a 7. I was expecting a bit more than what I got, but overall not a bad game. Definitely something for those that look for a little more than just RNG (Running N Gunning).
Yes, as others have pointed out this is actually a shooter with tactics. However, those tactics merely involve flanking on a consistent basis, nothing more. This can grow tiresome near the end of the game.
Also, you get immersed to a point, then for me it was a letdown after I lost a squad member, only to find that squad member reappear for the next mission. This really hurt my impression on the immersion factor. Up until that point, it is definitely immersive.
Sound is of the superior quality in this game. The sounds of the weapons and the explosions and etc are outstanding.
Graphics left a little to be desired. As others mentioned, a little behind on the times. I actually liked CoD graphics quite a bit more.
Firing is very realistic for anyone who's fired a weapon while running or under pressure.
MP is small and requires teamwork, a fresh change from other FPS's. However, being limited to only 4 maximum, it actually bores down the scope a little too much.
I might be too critical, however something overall is just lacking in this game as far as a polished product. I played it, I wasn't dissatisfied with it, but I wasn't completely googoo with it either. It was an above average gaming experience.