"Weapon sets" refers to a collection of weapons that are used or carried together to serve a particular purpose or be ready for different situations. Full definition
I do wish that rather than just different weapon sets for different challenges in levels, there were different twists such as time challenges, limited ink, pop all the balloons etc.. (gonintendo.com)
Bigger, better - rendered characters, varied, scrolling environments, and a variety of weapons set it apart from the crowd. (gamecritics.com)
The entirety of the red team will start out with the same weapon set as the blue. (gamerassaultweekly.com)