Hint: "active shots make firing rate quick with automatic weapons"

I got this hint while loading, I’m translating so words could not be the same. What are active shots? Once I was using the claw in horde and all of the sudden it started firing crazy quick, how did that happen?

Active shots are given once you get a perfect active reload. Press RB when the reload bar is in the white segment.

I think this is covered in the tutorial, might be worth running through it again just in case you’ve missed some other tricks.