Just got round to playing the final mission again and JESUS FUCKING CHRIST it was long!
I managed to do the drug lab section in one go, I found killing Big Smoke too easy for some reason. The fire section was abit harder. I had about 30 seconds left to get out the building whilst on the 1st/2nd floor stairwell, luckly I had full amour so I just ran to the exit and made it with about 3 seconds to go.
The driving bit was slightly anoying, the fire bombs didn't help, but they didn't really do much damage. It took me two goes to do this, thank god it let me continue after the drug lab section otherwise I would have just turned it off as I couldn't be bothered to do it again. First time, I got to when the cop was stepping on Sweet's fingers and he fell and died, but on the second time it managed to catch him and after another 5 minutes or so of shooting the cars etc I completed it
Gonna go round getting the snap shots and blow loads of money at the casino now