From Hue 1968: A Turning Point of the American War in Vietnam, by Mark Bowden (Atlantic Monthly Press, 2017), Kindle Loc. 6259-6275:
Che spoke no English, but she had been warned that when she heard the Americans shout “VeeCee,” it meant they needed to move fast, they had been spotted. She exchanged fire with the marines but never took careful aim. There were too many of them coming. When she used the rifle, she would just spray fire in the general direction of the enemy. After one skirmish she recovered a newer, more lightweight American rifle, an AR-15, which she preferred. Teams of the young people brought her ammo for it, looted from ARVN depots.
Whenever Lien fired her B-40 they would immediately run to a different trench, because it gave away their location and drew a hail of return fire. It took seven seconds for the launched grenade to explode. For some kinds of grenades it was only three seconds. For days they shot and ran, shot and ran. They moved so fast they rarely had a chance to see if they hit anything.
At the nearby Cong Market, her friend Hoang Thi No was engaged in a similar running street fight. She found the marines easy targets, because they were big and because they did not move confidently in the streets the way she and her team members could. She was very familiar with the blocks where she fought, so she knew which way to run when the shooting came close. To her, the Americans with all their heavy equipment were like men who had fallen from the sky to a strange planet. She picked them off individually, and when she found them in a group, she and her comrades threw grenades. The carnage she saw around her did not so much frighten as enrage her. Hoang resolved to fight to the death. She expected she would be wounded or killed because so many others had been. She didn’t think about it. She just fought. She was seventeen and excited and filled with pride and she did not tire easily. At night she and the others in her squad took turns sleeping for an hour or two. Four of those in her group were killed before they were finally ordered to withdraw to the forest and regroup.
Hoang’s team lasted longer than Che’s, which was in the path of Lieutenant Smith’s company. It held its own until the air and artillery bombardments started, which were unlike anything the girls had ever experienced.