REWARDS - Respect, $5,000, Misappropriation for C.R.A.S.H. unlocks
Get a car and head to the hospital. When you get there, you'll find out that an ambulance has already picked up Mr. Sindacco. Three red blips appear on your radar, indicating three ambulances that are out on the streets. You must find the one that contains Sindacco. Ram each one when you find them until you get a message saying that particular one is the right one. If you ram the wrong one, the Mafia will find out you're after the ambulance from the alert.
When you find the right ambulance, the driver will start speeding up and you'll get a message saying it's the right one. Keep ramming and shooting the ambulance until the Mafia guys get out. Kill them and quickly hop into the vehicle, driving your way to the yellow blip on your radar. Eventually some Mafia backup will arrive, but just concentrate on the road and get to the plant. When you park in the red marker, the mission is finished.