Help with ps3 Godfather Dons edition

Question

First off, how do you steal those cubed trucks that you are able to? I have tried to block them off with my car and I go up to the trucks door and hit triangle but he doesnt come out. So how do you interogate him?

Second im stuck on the mission where you have to defend the first warehouse. What is the easiest way to do this? cuz I keep losing .

Answer 1

Get a machine gun, park your car in front of the Cube Truck, and shoot the truck up until it is near-ready to catch fire. A few guys will pop out of the back and try and peg you off, and after you get them the driver will come out. After you've stolen the truck, markers on the map will guide you to where you need to drop the truck off. Expect a few cars after you.

For the mission, find a good place of cover where guys usually come in, and peg them off with the shotgun. After you've got a few, go nuts on the place, but don't forget to take lots of cover.