Damascus mastery camo on cold war Fara 83 (Vulture Exo)

I managed to get the @Call of Duty mastery camo Damascus on a cold war Fara 83 assault rifle blueprint called vulture exo, this is an ultra camo that changes with kills this isna glitch that happened during a game of plunder i do have Damascus unlocked already but they cannot be used on cold war weapons until now #Damascus#ColdWar#Warzone