Pro level player or cheat?

Spectated the guy that killed me as thought they might be a bit sus, this was the kill they got after deleting me at 60 meters with a headshot while sliding out of cover and then with a perfect follow up snipe shot.

I was not recording when he deleted me unfortunately, but i recorded right after.
https://imgur.com/a/jcVcpNH

Am I just needing to get better and stop crying, or is this guy not 100% legit?