You have to collect three packages dotted about the local area. Now make sure you've got a full health and armor for this one, and keep a Shotgun and Uzi handy for things gets tricky. A fast car, like, Infernus or a Banshee, is also essential. Drive to the first blip on the map, it's on the rooftop. As soon as the package is collected, your wanted level will raise to two stars and you're pursued by the police. Don't fight them, just run as fast as you can to the car and head directly to the next blip. A 60-second countdown will have started, but there should be plenty of time to get there. The next collection point adds more wanted level, so be quick. Use the buildings to give you cover from the pursuing cars by drawing them in and turning away at the last second. It's not a good idea to fight the police, so simply swap cars when yours gets too beaten up, and stop for a moment. The last collection points really brings up the ante, with 5-star wanted level. Head for the HQ quickly and only stops when your car's on fire. A top tip is to abandon any flaming car in the midst of the police onslaught, that way the explosion will take them out as well.