Call me a conspiracy theorist, but Premium DOES(imo) have hidden attributes.
I was given a day of premium.
My .50cals and 20mm went from being marshmallows thrown by a monkey, into molten cannon balls traveling Mach speeds.
Suddenly the 24 hours of premium is gone, and im back to watching my bullets smack airplanes and "spark" but do no damage.
I have not changed, especially from a match a few hours ago to now, the vehicles I use, have not changed, the ammo belts, have not changed, the BR's at which I play.. have not changed. But what has? My account going from premium to f2p.
Call me a tin foil hat conspiracy theorist, but playing on a Premium account, and playing on a F2P account is like changing the difficulty slider from "Normal" to "Death Wish".