After the cutscene get into Sweet's Greenwood and drive to the red marker in Jefferson. Be careful with the car. If it's destroyed you fail the mission.
Drive by the Ballas and let the Grove do the work. If you have an SMG you can join in if you like, but be careful and watch out for your car's health. Repeat this with three more groups of Ballas. By the time you reach the last group in Glen Park your car may be almost destroyed, so just run over the Ballas if you wish. You'll get two stars, but it doesn't matter, just go to the nearest Pay 'N' Spray.
After losing the heat drive back to Sweet's house to complete the mission.
If you find it too difficult to do this way you can stop the car just out of range of a group of Ballas and snipe them from a distance. Don't stray too far from the car or you'll fail the mission.
- Cash: $500
- Respect: +6