After Chapter III starts, proceed to the tunnel specified and fight your first group of enemies. After they are killed, continue driving cautiously and SLOWLY. Starscream will drop proximity mines (they look like missiles sticking out of the road blinking red) Shoot at them from a distance, then continue moving forward until you see more. Follow the same process by blowing them up from ranged to ensure no damage is taken. Eventually you will reach a cut scene, once you regain control of your character the achievement will unlock