Tune In, Drop Off Achievement
Tune In, Drop Off20
Complete all instances of Trafficking.
In this activity your job is to defend your homie while he drives around to make deals at set locations while you have cops and gangs after you. While your homie is driving, try to kill the driver of cars chasing you to get them off of your tail. When you make it to a destination, get out and stay close to your homie. This becomes very easy once you have upgraded your weapons, and especially if you are invincible and have infinite ammo.