The meaning of unload in this context
In a game, a man was holding a gun and said to another person, "I'll unload in your face."
In this case, what exactly does 'unload' mean?
The using of the verb 'unload' here is very unusual, right?

Question

Answer

It means what you think it means.  To "fire" a gun might mean shooting just one bullet, but "unload" suggests that you will use every bullet.

It's not a literal usage of the word "unload," but it's fairly common, at least in movies or other contexts where people are describing very violent actions.