"Wingman Nerf", my vision on this gun

I heard, while watching a stream, "They nerfed the Wingman."  If that's true, I don't see it.  What, was it nerf by -5 damage done?  I seen a person with 2/4ths gold armor go down to 1/5th health in one shot.  That means they tore through 120 health in one shot.  It's still too OP imo.

If the Wingman was, "nerfed," whoever made this adjustment...  Either your a Wingman abuser or you need to find a new job.  Not trying to be disrespectful, but I don't see any difference really.