It's sad to hear that cheaters can free play at normal servers with damage like hardcore =(

But it's looks like something wrong with damage cheater detection
https://bf4db.com/player/1885604172
This guy have 350-390% increased damage and marked yellow not red
It's hacker which banned before and probable account for testing cheat which now used by other players with more light settings
And he not banned and has 0% cheat rating

Is it average damage of all shots fired by player from specific gun? or something else?
And how high it should be above average players damage to be marked red?

I found this player today https://bf4db.com/player/1885640983
His MG4 damage is 38.48 and it's 135.59% above players average.
Maximum MG4 damage is 24.5 http://symthic.com/bf4-weapon-info?w=MG4
It means he has minimum 57% headshot\shot ratio!
But it's impossible to shooting from <10m range always. especialy on open maps like he play alot.
And if we will take average distance as 50m then his headshot\shot ration will be 95%!

If damage stats means average damage then this player uses aimbot which always shot in head expecting when enemy on low hp

Also players with very high(50%+ above avg) damage meet very often lately.
Looks like this aimbot becomes more popular and headshot\shot ratio will be important like headshot\kill ratio

This player marked as clear https://bf4db.com/player/1887595039

but he cheats and even don't try to hide:

http://battlelog.battlefield.com/bf4/battlereport/show/1/924641796765509632/1887595039/ near 100% hs\kill ration with dmr

http://battlelog.battlefield.com/bf4/battlereport/show/1/924646380523218944/1887595039/ next round and again near 100% hs\kill ratio

also many playerd ingame blame him at aimbot use.

as one of the best world dmr users i can say that it's impossible stats and he is 100% cheater