Back in H5 there was a great feature that was remove in HI. Whenever you perfected someone it displayed a little star in the killdeer next to the weapon. Not exactly sure why it was removed but I would love to see it return.
(probably removed because of the several perfect variants that are new to halo infinite, as long as you hit all your shots with any combo of weapons you get a perfect. In H5 you only received a perfect if you hit all your shots with a single precision weapon)