I think the door mechanic is a "good idea" but insta killing is NOT. make it so its just people actually infront of the door and not 1m to the side. And a much better and realistic idea is to knock you over, strip all of your guns from your player just leaving your knife in your hand so you have atleast a chance to react with a knife kill? I think this would be really good. Or even just knock you over into a down but not out stage, anything than just unrealisticly instantly killing you..