RatCamper

I knew it! Myself and others repeatedly come across people that can take loads of hits at point blank / super close range. The inevitable kill cam that follows is the real teller at 100%. Seriously? I know I've unloaded a whole shotgun mag into someone like that more than once, they shoot me when I run out of ammo and they have 100%. No way. Also someone out in the open against maybe 4 people at close range. the individual survives and kills the opponents. How is that even possible? Even with lousy aim that person should be well and truly gone.
Can't forget being shot with a rifle through walls / solid shipping containers. Again, how?