I agree with you on that man. I miss the good old days where you had real guns (as in real life guns such as M16, AK47, and G36) and not the knockoff futuristic variants. If I wanted jetpacks and all that I'd play Halo or some other Sci-Fi game. I am hoping they realize that, as you said, a lot of older players want the balance the game used to have (Pre-MW3 days).
On the other hand, you have newer players who enjoy the new features, so it is a tough decision. There are always going to be varying opinions on topics like this.