Depth of field
Along with the particle effects and lens flare the image effects package came with a lovely script that adds depth of field to the first person camera, making thinks in the distance blurry and focusing on the closer objects.
As you can see in this screenshot the church is blurrier since its the farthermost away while the school house is only slightly blurred compared to the traffic barricades, combined with the dust and lighting it really adds character to the scene.