Joel heard this and felt that something was off, He's in the US army jurisdiction, the one that should come to help him, shouldn't it be the US army? Why is it the Astral PMC troops? He needs to get to the bottom of this.
The fight goes on, once the soldiers had their weapons ready, they fought fiercely for their lives. With the continuous support from the weapons dropped down from the carryall, it felt like a party for the US soldiers.
They had unlimited ammo and weaponry at their disposal, and the undead horde was steadily mowed down by the walker's fire and its large-caliber Gatling gun, along with various heavy weapons from the Astral PMC troops.
The seemingly endless horde of undead quickly diminished, culminating in small scattered groups. This forced the soldiers to conduct door-to-door searches to eliminate all remaining undead indoors.