yea, i wish they did too
there have been a good amount of changes though. Supposedly a cover system, new way of getting weapons, taxi\'s are big, cell phone calls instead of going into buildings where the missions are \'briefed\'..i think ign has an in depth preview that lists a few things out. The cover system definitly seemed like the most notable difference. They just said it was a lot more realistic in general..actually had some impact when they killed someone