The mob of soldier after reaching the entrance into the underground tunnels organized and charged. With the heavies and most armored at the front, if they meant an enemy the rest of the troops would be protected. And the dust of the surface became a fog in the tunnels. But to keep each other from friendly fire, if they see someone and don't know if they are an enemy, they say "fry" waiting to hear the code word "day," if it does not come immediately, then it's an enemy. Once in the tunnels they began to spread out finding and take out rebel patrols and small rebel groups. But by then the rebel knew what was going on and began to try and hold off the coalition forces until they could cause the tunnels to collaps.
