The sniper's shots make big sparks when they impact the shields the team carry, but don't even make a visible scratch or dent, or even move the shields in the slightest, revealing the impacts as being added in post production. In truth, the rifle round should make rather large dents (if not fully penetrate) and visibly move the shields back when hit.
At 13:10, when Greg exits the SRU truck, the crew is reflected off of the SUV that Ed is using for cover.