MTZ-762 forged cammo bugged

[DreamHack]

I run to grind some cammos, since i reach gold at mtz and try to complete forge challenge and i realise is bugged, 25 kills with ADS and full loaded is not counting.
Alredy try to use 5 attachments and use Kit but do not work, did i miss something?

[Dustymage]

i tried it in hardcore and it worked, just use a large magazine and no attachments and reload your gun after every kill