Shoot out a cop's tires while fleeing in a police chase.
Three methods of getting this achievement. For both methods all you need to do is take out one wheel and nothing more!
1st method (video method): Either KO a cop and take his gun and just wait for back up to show. Once they show, try taking out one of the tires from the cop car. You get destroyed by cops very easily in this game if you try to take them head on.
2nd method: When you have a gun. Get into a car and hold to lean out of the window. Doing this will slow down time and let you aim easily. Now that your leaning out the window, take aim and fire a shot with . Once you have popped a tire the achievement will unlock.
3rd method: If you have a gun with you. Go a police station or find a police car in the streets. And simply shoot out one of the tires.
REALLY easy way to get this achievement - wait until you've unlocked the cop skill to be able to get guns out of the trunks of police cars. Then walk up to a police car, take out a gun (which will make you wanted) and then shoot a tire. Achievement unlocked
I did this early in the game, as soon as i got the motorcycle for the first time I drove by a police station, I got of the bike and killed a cop and took his gun and then shot the tire of a parked police car in the parking lot.