Actually vsed that guy last night on overwatch, needless to say it was messy, jesus gosh darning christ. Good to see he has the LAN credentials to back up his skills.
Hate to break it to you but these are my thoughts on that video.
He's extremely balant and fails horribly at hiding it aswell, nevermind that his mouse movements are always behind or ahead of his aim, if it's due to a desync from a cheap webcam then he shouldn't be using it in the first place since that's misleading when trying to prove if you're legit or not, plus in the parts with the webcam looking under his monitor you could see a phone with an active screen, you wouldn't have a phone being on all the time like that unless you had a pretty active application and it's a common tactic against a varient of FairFight that takes screenshots of your desktop, so they'd put the ESP radar onto a hidden monitor or 3rd party device like an android phone.
Oh and also in some incidents he had very little or zero awareness of his surroundings to the point where he just snapped like crazy during fights with enemies that completely got the jump on him. Also, as a theory to why he hasn't been FF'd on Battlefield is probably because it's set to look for the most balant of things like, screenshots of the players ESP/Aimbot Hud and other things like constant headshots, from the looks of it, this looks like smooth aim set to really high values with lock on and spray, while trying to use something on his phone cause as I said, cheat makers will always try to find ways around anti-cheats and if offloading the HUD onto a 3rd party device that something like FF can't detect, then they'll do it.
Also since the CSGO Workshop VACation incident, I wouldn't trust any form of credentials when you're able to hide the smallest of cheats in the most unexpected things. I mean seriously, do you honestly believe for a second that any human is capable of having such precise accuracy & speed? Of course not, we're human, not robots or gods.
But again thats my thoughts on the matter, cheating has poisoned gaming to the point where any desire of trying is ruined and the denial mentality is only making it worse.