Actually I had to have agreed with everything that guy said when I first started but once I got used to it, especially in the later game modes, leadership is a big issue (when the forgeters actually listen to your orders) and team work soemtimes comes into play. But its liek CoD though in that it depends who is on your squad, if they are going to be cooperative. In CoD I rarely had team mates that did anything besides try to rack up kills when teamwork could be used and it would be more fun.
It's an error in human nature moreso in my opinion.
I never play as a sniper so I don't really notice anything on that issue.
The art style I don't pay attention to while playing, though at one point in a game I was taking cover from sniper fire and noticed how incredibly interesting the concrete barrier I was hiding behind looked. The way the light hit it and the grass under me and the ocean in the distance, it all looked rather real. I was snapped out of this when the loving sniper managed to flank me and I had to shoot him in the head but still, it was quite an interesting realization when I finally noticed how far graphics have come.