Gao Guang walked a blood-soaked path; the glory belongs to King's Defense.
The Black Box concentrated most of their forces in ambushing King's Defense. They left only five people inside the building. So when Gao Guang charged directly at the building, it was a test of the people covering him, not of Gao Guang himself.
Yet as Gao Guang desperately stormed the building, the way he drew and distracted Black Box's attention was real. But by the time Gao Guang entered the building and found Andy, the threat inside had already been neutralized.
The final battle with Black Box was fought by all of King's Defense, not just Gao Guang alone. This showcased the strength of King's Defense as a whole, rather than an individual performance by Gao Guang.
Now Andy was finally dead; Black Box was finished, an archenemy had been completely eliminated. But Gao Guang felt no happiness.
The cost was simply too devastating.