You probably know No_Cheat_Turk: https://bf4db.com/player/175412196
I say he got wallhacks and macros. Why? Well, in the last 15 matches he had 263 kills and 4 headshot ribbons (1 at most per round), which means he got somewhere between 12 and 20 headshots in that time resulting in a HS/K% of 4.5-7.6%. You may have a round or two of that but not over that many rounds. He mostly played aws with one round of scar and two of famas. All on TDM.
He also played this round (http://battlelog.battlefield.com/bf4/battlereport/show/1/1130162238105942848/175412196/) vs a full on rage hacker with eliminating only, invisible and aimbot. While I would consider myself a pretty decent player, against that cheater you just wont to that. My efforts can be seen in the round before that: http://battlelog.battlefield.com/bf4/battlereport/show/1/1130159682315189056/175412196/ and we played together, he also wasnt rage hacking for most of the round.
Lets get to the rest of it. Its really hard to proof if someone uses wallhacks and/or macros. He plays his aws with flir, heavy barrel and bipod (which he never uses) (https://gyazo.com/c5897782cc40e49449cb9175ac8edb9b). He runs the coyote with heavy barrel and bipod on his mtar aswell (https://gyazo.com/03016d14a724e92fc5f73ada0f09734c). And then he did this: https://www.youtube.com/watch?v=2eyLFH6zcFQ
I am not saying one cant be lucky but that is a bit too lucky, especially with those setups. I still have the full round on my drive but we destroyed him completly so its not of much use.
What I do however have is from an earlier encounter: https://www.youtube.com/watch?v=5F3SUvNVsk8 I basically wrote everything you need to know down in the video. After that I also joined after him to spectate him: https://www.youtube.com/watch?v=dQK8mPCLUdc
We all know the spectator is buggy as hell and barely helping, but we also know that if there is no mouse movement to counter recoil, as it is when someone is using a macro or aimbot, it looks like the first kill.
He also is the admin of said server (which I didnt know). I got kicked from the server, which tells us he somehow knows I was spectating. While it could have been that he checks who joined his server in procon after each death, I doubt that. You also dont randomly check the server page. So he somehow knows, ok. Why would you kick me though if there is nothing to see? He says "hacker" later but that doesnt answer why he kicked me from spectating. After I rejoin he never respawns as you can see.
I know its all just indication and no solid proof like aiming through walls and such yet at least to me its clear. To play against him feels exactly like playing vs miro
Edit: the last 15 battlereports as of writing this: http://battlelog.battlefield.com/bf4/battlereport/show/1/1130576034071467392/175412196/