Humvee M998,Pavement,30 MPH,Uturn Medium Slow,Approach Downhill,Loud Engine Swell,Decelerate,Muffler Rumble,Potholes,Chassis Rattle,Corner By,Dirt,Tire Crunch Gravel,Away Labored Accelerate,Uphill,Very Rattley Engine,Distant Whining,BG Wind, Military