I believe I've found a bug where any mask you wear, (this includes the V from vendetta mask, the dirt bike helmet, the gasmask, Vinne, and wolf mask.
I'm not the only one who has expeirienced this, it seems my friends and alot of streamers I have watched are loosing color from blood loss or dying for no reason after weaing mask for a while. I've wanted to make sure I wasn't just getting injured from zombies. players, etc. So after trying this a few times with a few friends, I am noticing the same result every time we wear a mask after a few hours. I made sure that myself and others weren't being hit by zombies and etc. I don't this this is how it is supposed to be would it? How can masks kill you? This must be a bug.