Few days ago I got Call of Duty 4 MW from my friend, and while I was playing it with a lot of criticism at beginning, after playing it for a couple of hours got very impressed, ok, it is not the most realistic and tactical games around, but in my opinion it is far more better engine for next gen. INF than Crysis or UT3, because it already has a lot of stuff INF3 needs and graphics are awsome, bassicly, they should add in weapon bobing, freeaim, upgrade health system and add in other small things, to make it more like INF, plus larger MP maps.
In my opinion INF3 dont needs drivable vehicles, maby only Humvees or Dingo II, but thats it, still scripted enterance and fastroping from UH-60 is something that I want to see.