Call of Duty 4: Modern Warfare/War Pig

This mission is pretty straightforward, simply escort the M1A1 Tank through the streets, while watching out for RPG's on the rooftops, and machine guns on the street. At one point, War Pig will take out a few machine guns, but enemies will still be coming out of the buildings. Use Flashbangs or Frags before you enter a building, and clear out each one. Keep doing this until you reach your objective.