Its logic that MW3 almost looks at MW2 because they can't just delete guns like m4a1, ak47, m16... ( they only let us see that kind of guns that we already knew, "the famous guns"
and the scopes, most of them are also the same but thats normal these are modern scopes that are been used NOW in Modern War.
So i expected it will look like MW2.
But i'll hope they're going to add some awesome things in MP XD
IDC about the SP, Its about the MP