That's mean... Joseph is a kid, he's probably somewhere between 15-17 years old, while Galfa is a Merc with years of combat experience and in his mid 20s.Joseph was pitiful for most of the episode and it looks like he can't fight worth shit,
The fact that he was able to hold out this long is impressive.
Yet Joseph is what Galfa wanted to be, but never could.... not only because of his poor background, but also because of what the world made him do/see and probably how his surroundings changed his views about the world.
Poor Galfa