When Nes Luman and Gu Ming were so panicked that they didn't know what to do, the Phoenixes they greatly feared—which had inspired enormous dread in them—had completed their second task and successfully retreated.
They had destroyed the Knight Titan that had lost its Shield Generator.
To be honest, the process was not easy.
The space warriors were strong, very strong, but not truly invincible.
For example, a machine gun fired at the shoulder plates, chest plates, or even the helmet might indeed not do much harm. But a shot to the waist, joints, or back would cause them just as much pain.
And even if they could only hit the thickest part of the armor, a few bullets or dozens of machine gun rounds were still manageable, but it becomes useless when hundreds of rounds rain down.
Those were machine gun rounds, not ordinary bullets.
Space warriors weren't so easy to hit.