Mission: Watchdogs (Day 1)
Difficulty: AnyIf you want to try this on an higher difficulty, definitely use the armored escape vehicle from your assets menu. For lower difficulty it's not really necessary to spend the extra cash on the armor, but it can't hurt if want to be extra sure.
Start the mission and deliver your bags like you do. After that the escape vehicle will pull up in the middle of the intersection. Try to be as quick as possible and attract the attention towards you by shooting the enemies in the road.
Sprint to the escape vehicle and that's it. After a second or so the day is completed and your achievement should pop.