Vidmaster Challenge A Achievement
Vidmaster Challenge A10
Complete Operation A, Mission 6 with the Blind and Thunderstorm Skulls active
I recommend you run through this mission at least one time before attempting this, since your map will be hidden by the Blind Skull. This is a fairly easy and quick mission even with the skulls on. Just focus on running through the map as fast as you can, the only enemy I really stopped to kill was the Shade Turrets. Otherwise, just shoot as you run to limit the fire you're taking. After getting the second Warthog and driving to the end you'll get this achievement.