There's deffo lag involved coz your kill notifications take a while to pop up, however it does look like she's using a modded controller with a rapid fire perk. I don't like to judge but I've played a shit tonne of crucible n 99% of the time when I see dodgy stuff, be it red bars, modded controllers, or just general dubious stuff, they've usually got a flawless emblem. I've often wondered are they actually cheating, or just benefitting from whatever advantage the shitty netcode gives them? I actually had a spell a few months ago where I recorded the number of scarabs I bumped into and the vast majority had red bar, and where usually hunters using last word, with a high amount being arabic or african, ie Saudi, Kuwait (q8), etc Again no idea if cheats or just bad mm giving them huge advantages.